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[taler-exchange] branch master updated: -work on auditor test


From: gnunet
Subject: [taler-exchange] branch master updated: -work on auditor test
Date: Mon, 17 Jul 2023 16:18:18 +0200

This is an automated email from the git hooks/post-receive script.

grothoff pushed a commit to branch master
in repository exchange.

The following commit(s) were added to refs/heads/master by this push:
     new 62dcad6a -work on auditor test
62dcad6a is described below

commit 62dcad6a60a3a74ff8933e11965f450c1ad5952c
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Mon Jul 17 16:18:14 2023 +0200

    -work on auditor test
---
 src/auditor/generate-auditor-basedb.sh |    2 +
 src/auditor/test-auditor.sh            | 1177 +++++++++++++++++++-------------
 2 files changed, 700 insertions(+), 479 deletions(-)

diff --git a/src/auditor/generate-auditor-basedb.sh 
b/src/auditor/generate-auditor-basedb.sh
index 2dc2b2a4..3dae047c 100755
--- a/src/auditor/generate-auditor-basedb.sh
+++ b/src/auditor/generate-auditor-basedb.sh
@@ -75,6 +75,8 @@ mkdir -p "$(dirname "$BASEDB")"
 
 echo "Dumping database ${BASEDB}.sql"
 pg_dump -O "auditor-basedb" | sed -e '/AS integer/d' > "${BASEDB}.sql"
+cp "${CONF}.edited" "${BASEDB}.conf"
+cp "$(taler-config -s exchange-offline -o MASTER_PRIV_FILE -f)" 
"${BASEDB}.mpriv"
 
 # clean up
 echo -n "Final clean up ..."
diff --git a/src/auditor/test-auditor.sh b/src/auditor/test-auditor.sh
index da9a90e0..b9b7792d 100755
--- a/src/auditor/test-auditor.sh
+++ b/src/auditor/test-auditor.sh
@@ -15,6 +15,10 @@
 #  TALER; see the file COPYING.  If not, If not, see 
<http://www.gnu.org/license>
 #
 #
+# shellcheck disable=SC2317
+# shellcheck disable=SC1091
+#
+#
 # Setup database which was generated from a perfectly normal
 # exchange-wallet interaction and run the auditor against it.
 #
@@ -26,7 +30,7 @@ set -eu
 
 # Set of numbers for all the testcases.
 # When adding new tests, increase the last number:
-ALL_TESTS=`seq 0 33`
+ALL_TESTS=$(seq 0 33)
 
 # $TESTS determines which tests we should run.
 # This construction is used to make it easy to
@@ -57,19 +61,19 @@ function stop_libeufin()
     echo "Stopping libeufin..."
     if test -f ${MYDIR:-/}/libeufin-sandbox.pid
     then
-        PID=`cat ${MYDIR}/libeufin-sandbox.pid 2> /dev/null`
+        PID=$(cat ${MYDIR}/libeufin-sandbox.pid 2> /dev/null)
         echo "Killing libeufin sandbox $PID"
-        rm ${MYDIR}/libeufin-sandbox.pid
-        kill $PID 2> /dev/null || true
-        wait $PID || true
+        rm "${MYDIR}/libeufin-sandbox.pid"
+        kill "$PID" 2> /dev/null || true
+        wait "$PID" || true
     fi
     if test -f ${MYDIR:-/}/libeufin-nexus.pid
     then
-        PID=`cat ${MYDIR}/libeufin-nexus.pid 2> /dev/null`
+        PID=$(cat ${MYDIR}/libeufin-nexus.pid 2> /dev/null)
         echo "Killing libeufin nexus $PID"
-        rm ${MYDIR}/libeufin-nexus.pid
-        kill $PID 2> /dev/null || true
-        wait $PID || true
+        rm "${MYDIR}/libeufin-nexus.pid"
+        kill "$PID" 2> /dev/null || true
+        wait "$PID" || true
     fi
     echo "Stopping libeufin DONE"
 }
@@ -80,8 +84,8 @@ function cleanup()
     if test ! -z "${EPID:-}"
     then
         echo -n "Stopping exchange $EPID..."
-        kill -TERM $EPID
-        wait $EPID || true
+        kill -TERM "$EPID"
+        wait "$EPID" || true
         echo "DONE"
         unset EPID
     fi
@@ -95,12 +99,17 @@ function exit_cleanup()
     if test ! -z "${POSTGRES_PATH:-}"
     then
         echo "Stopping Postgres at ${POSTGRES_PATH}"
-        ${POSTGRES_PATH}/pg_ctl -D $TMPDIR -l /dev/null stop &> /dev/null || 
true
+        "${POSTGRES_PATH}/pg_ctl" \
+                        -D "$TMPDIR" \
+                        -l /dev/null \
+                        stop \
+            &> /dev/null \
+            || true
     fi
     cleanup
-    for n in `jobs -p`
+    for n in $(jobs -p)
     do
-        kill $n 2> /dev/null || true
+        kill "$n" 2> /dev/null || true
     done
     wait || true
     echo "DONE"
@@ -110,29 +119,33 @@ function exit_cleanup()
 trap exit_cleanup EXIT
 
 function launch_libeufin () {
-    cd $MYDIR
-    export LIBEUFIN_SANDBOX_DB_CONNECTION="jdbc:sqlite:${DB}-sandbox.sqlite3"
+    cd "$MYDIR"
+# shellcheck disable=SC2016
+    export 
LIBEUFIN_SANDBOX_DB_CONNECTION='jdbc:postgresql://localhost/auditor-basedb?socketFactory=org.newsclub.net.unix.AFUNIXSocketFactory$FactoryArg&socketFactoryArg=/var/run/postgresql/.s.PGSQL.5432'
     libeufin-sandbox serve --no-auth --port 18082 \
-                     > ${MYDIR}/libeufin-sandbox-stdout.log \
-                     2> ${MYDIR}/libeufin-sandbox-stderr.log &
-    echo $! > ${MYDIR}/libeufin-sandbox.pid
-    export LIBEUFIN_NEXUS_DB_CONNECTION="jdbc:sqlite:${DB}-nexus.sqlite3"
+                     > "${MYDIR}/libeufin-sandbox-stdout.log" \
+                     2> "${MYDIR}/libeufin-sandbox-stderr.log" &
+    echo $! > "${MYDIR}/libeufin-sandbox.pid"
+# shellcheck disable=SC2016
+    export 
LIBEUFIN_NEXUS_DB_CONNECTION='jdbc:postgresql://localhost/auditor-basedb?socketFactory=org.newsclub.net.unix.AFUNIXSocketFactory$FactoryArg&socketFactoryArg=/var/run/postgresql/.s.PGSQL.5432'
     libeufin-nexus serve --port 8082 \
-                   2> ${MYDIR}/libeufin-nexus-stderr.log \
-                   > ${MYDIR}/libeufin-nexus-stdout.log &
-    echo $! > ${MYDIR}/libeufin-nexus.pid
-    cd $ORIGIN
+                   2> "${MYDIR}/libeufin-nexus-stderr.log" \
+                   > "${MYDIR}/libeufin-nexus-stdout.log" &
+    echo $! > "${MYDIR}/libeufin-nexus.pid"
+    cd "$ORIGIN"
 }
 
 # Downloads new transactions from the bank.
 function nexus_fetch_transactions () {
-    export LIBEUFIN_NEXUS_USERNAME=exchange
-    export LIBEUFIN_NEXUS_PASSWORD=x
-    export LIBEUFIN_NEXUS_URL=http://localhost:8082/
-    cd $MY_TMP_DIR
+    export LIBEUFIN_NEXUS_USERNAME="exchange"
+    export LIBEUFIN_NEXUS_PASSWORD="x"
+    export LIBEUFIN_NEXUS_URL="http://localhost:8082/";
+    cd "$MY_TMP_DIR"
     libeufin-cli accounts fetch-transactions \
-                 --range-type since-last --level report exchange-nexus > 
/dev/null
-    cd $ORIGIN
+                 --range-type since-last \
+                 --level report \
+                 exchange-nexus > /dev/null
+    cd "$ORIGIN"
     unset LIBEUFIN_NEXUS_USERNAME
     unset LIBEUFIN_NEXUS_PASSWORD
     unset LIBEUFIN_NEXUS_URL
@@ -142,12 +155,13 @@ function nexus_fetch_transactions () {
 # Instruct Nexus to all the prepared payments (= those
 # POSTed to /transfer by the exchange).
 function nexus_submit_to_sandbox () {
-    export LIBEUFIN_NEXUS_USERNAME=exchange
-    export LIBEUFIN_NEXUS_PASSWORD=x
-    export LIBEUFIN_NEXUS_URL=http://localhost:8082/
-    cd $MY_TMP_DIR
-    libeufin-cli accounts submit-payments exchange-nexus
-    cd $ORIGIN
+    export LIBEUFIN_NEXUS_USERNAME="exchange"
+    export LIBEUFIN_NEXUS_PASSWORD="x"
+    export LIBEUFIN_NEXUS_URL="http://localhost:8082/";
+    cd "$MY_TMP_DIR"
+    libeufin-cli accounts submit-payments\
+                 exchange-nexus
+    cd "$ORIGIN"
     unset LIBEUFIN_NEXUS_USERNAME
     unset LIBEUFIN_NEXUS_PASSWORD
     unset LIBEUFIN_NEXUS_URL
@@ -158,44 +172,67 @@ function nexus_submit_to_sandbox () {
 function pre_audit () {
     # Launch bank
     echo -n "Launching bank"
-    EXCHANGE_URL=`taler-config -c $CONF -s EXCHANGE -o BASE_URL`
     launch_libeufin
-    for n in `seq 1 80`
+    for n in $(seq 1 80)
     do
         echo -n "."
         sleep 0.1
         OK=1
-        wget http://localhost:18082/ -o /dev/null -O /dev/null >/dev/null && 
break
+        wget http://localhost:18082/ \
+             -o /dev/null \
+             -O /dev/null \
+             >/dev/null \
+            && break
         OK=0
     done
-    if [ 1 != $OK ]
+    if [ 1 != "$OK" ]
     then
         exit_skip "Failed to launch Sandbox"
     fi
-    sleep $LIBEUFIN_SETTLE_TIME
-    for n in `seq 1 80`
+    sleep "$LIBEUFIN_SETTLE_TIME"
+    for n in $(seq 1 80)
     do
         echo -n "."
         sleep 0.1
         OK=1
-        wget http://localhost:8082/ -o /dev/null -O /dev/null >/dev/null && 
break
+        wget http://localhost:8082/ \
+             -o /dev/null \
+             -O /dev/null \
+             >/dev/null \
+            && break
         OK=0
     done
-    if [ 1 != $OK ]
+    if [ 1 != "$OK" ]
     then
         exit_skip "Failed to launch Nexus"
     fi
     echo " DONE"
-    if test ${1:-no} = "aggregator"
+    if test "${1:-no}" = "aggregator"
     then
         echo -n "Running exchange aggregator ..."
-        taler-exchange-aggregator -y -L INFO -t -c $CONF 2> 
${MY_TMP_DIR}/aggregator.log || exit_fail "FAIL"
+        taler-exchange-aggregator \
+            -y \
+            -L INFO \
+            -t \
+            -c "$CONF" \
+            2> "${MY_TMP_DIR}/aggregator.log" \
+            || exit_fail "FAIL"
         echo " DONE"
         echo -n "Running exchange closer ..."
-        taler-exchange-closer -L INFO -t -c $CONF 2> ${MY_TMP_DIR}/closer.log 
|| exit_fail "FAIL"
+        taler-exchange-closer \
+            -L INFO\
+            -t \
+            -c "$CONF" \
+            2> "${MY_TMP_DIR}/closer.log" \
+            || exit_fail "FAIL"
         echo " DONE"
         echo -n "Running exchange transfer ..."
-        taler-exchange-transfer -L INFO -t -c $CONF 2> 
${MY_TMP_DIR}/transfer.log || exit_fail "FAIL"
+        taler-exchange-transfer \
+            -L INFO \
+            -t \
+            -c "$CONF" \
+            2> "${MY_TMP_DIR}/transfer.log" \
+            || exit_fail "FAIL"
         echo " DONE"
            echo -n "Running Nexus payment submitter ..."
            nexus_submit_to_sandbox
@@ -213,32 +250,97 @@ function audit_only () {
     echo -n "Running audit(s) ..."
 
     # Restart so that first run is always fresh, and second one is incremental
-    taler-auditor-dbinit -r -c $CONF
-    $VALGRIND taler-helper-auditor-aggregation -L DEBUG -c $CONF -m 
$MASTER_PUB > test-audit-aggregation.json 2> 
${MY_TMP_DIR}/test-audit-aggregation.log || exit_fail "aggregation audit failed"
+    taler-auditor-dbinit \
+        -r \
+        -c "$CONF"
+    $VALGRIND taler-helper-auditor-aggregation \
+              -L DEBUG \
+              -c "$CONF" \
+              -m "$MASTER_PUB" \
+              > test-audit-aggregation.json \
+              2> "${MY_TMP_DIR}/test-audit-aggregation.log" \
+        || exit_fail "aggregation audit failed"
     echo -n "."
-    $VALGRIND taler-helper-auditor-aggregation -L DEBUG -c $CONF -m 
$MASTER_PUB > test-audit-aggregation-inc.json 2> 
${MY_TMP_DIR}/test-audit-aggregation-inc.log || exit_fail "incremental 
aggregation audit failed"
+    $VALGRIND taler-helper-auditor-aggregation \
+              -L DEBUG \
+              -c "$CONF" \
+              -m "$MASTER_PUB" \
+              > test-audit-aggregation-inc.json \
+              2> "${MY_TMP_DIR}/test-audit-aggregation-inc.log" \
+        || exit_fail "incremental aggregation audit failed"
     echo -n "."
-    $VALGRIND taler-helper-auditor-coins -L DEBUG -c $CONF -m $MASTER_PUB > 
test-audit-coins.json 2> ${MY_TMP_DIR}/test-audit-coins.log || exit_fail "coin 
audit failed"
+    $VALGRIND taler-helper-auditor-coins \
+              -L DEBUG \
+              -c "$CONF" \
+              -m "$MASTER_PUB" \
+              > test-audit-coins.json \
+              2> "${MY_TMP_DIR}/test-audit-coins.log" \
+        || exit_fail "coin audit failed"
     echo -n "."
-    $VALGRIND taler-helper-auditor-coins -L DEBUG -c $CONF -m $MASTER_PUB > 
test-audit-coins-inc.json 2> ${MY_TMP_DIR}/test-audit-coins-inc.log || 
exit_fail "incremental coin audit failed"
+    $VALGRIND taler-helper-auditor-coins \
+              -L DEBUG  \
+              -c "$CONF" \
+              -m "$MASTER_PUB" \
+              > test-audit-coins-inc.json \
+              2> "${MY_TMP_DIR}/test-audit-coins-inc.log" \
+        || exit_fail "incremental coin audit failed"
     echo -n "."
-    $VALGRIND taler-helper-auditor-deposits -L DEBUG -c $CONF -m $MASTER_PUB > 
test-audit-deposits.json 2> ${MY_TMP_DIR}/test-audit-deposits.log || exit_fail 
"deposits audit failed"
+    $VALGRIND taler-helper-auditor-deposits \
+              -L DEBUG \
+              -c "$CONF" \
+              -m "$MASTER_PUB" \
+              > test-audit-deposits.json \
+              2> "${MY_TMP_DIR}/test-audit-deposits.log" \
+        || exit_fail "deposits audit failed"
     echo -n "."
-    $VALGRIND taler-helper-auditor-deposits -L DEBUG -c $CONF -m $MASTER_PUB > 
test-audit-deposits-inc.json 2> ${MY_TMP_DIR}/test-audit-deposits-inc.log || 
exit_fail "incremental deposits audit failed"
+    $VALGRIND taler-helper-auditor-deposits \
+              -L DEBUG \
+              -c "$CONF" \
+              -m "$MASTER_PUB" \
+              > test-audit-deposits-inc.json \
+              2> "${MY_TMP_DIR}/test-audit-deposits-inc.log" \
+        || exit_fail "incremental deposits audit failed"
     echo -n "."
-    $VALGRIND taler-helper-auditor-reserves -i -L DEBUG -c $CONF -m 
$MASTER_PUB > test-audit-reserves.json 2> ${MY_TMP_DIR}/test-audit-reserves.log 
|| exit_fail "reserves audit failed"
+    $VALGRIND taler-helper-auditor-reserves \
+              -i \
+              -L DEBUG \
+              -c "$CONF" \
+              -m "$MASTER_PUB" \
+              > test-audit-reserves.json \
+              2> "${MY_TMP_DIR}/test-audit-reserves.log" \
+        || exit_fail "reserves audit failed"
     echo -n "."
-    $VALGRIND taler-helper-auditor-reserves -i -L DEBUG -c $CONF -m 
$MASTER_PUB > test-audit-reserves-inc.json 2> 
${MY_TMP_DIR}/test-audit-reserves-inc.log || exit_fail "incremental reserves 
audit failed"
+    $VALGRIND taler-helper-auditor-reserves \
+              -i \
+              -L DEBUG \
+              -c "$CONF" \
+              -m "$MASTER_PUB" \
+              > test-audit-reserves-inc.json \
+              2> "${MY_TMP_DIR}/test-audit-reserves-inc.log" \
+        || exit_fail "incremental reserves audit failed"
     echo -n "."
-    rm -f ${MY_TMP_DIR}/test-wire-audit.log
+    rm -f "${MY_TMP_DIR}/test-wire-audit.log"
     thaw() {
-      $VALGRIND taler-helper-auditor-wire -i -L DEBUG -c $CONF -m $MASTER_PUB 
> test-audit-wire.json 2>> ${MY_TMP_DIR}/test-wire-audit.log
+        $VALGRIND taler-helper-auditor-wire \
+                  -i \
+                  -L DEBUG \
+                  -c "$CONF" \
+                  -m "$MASTER_PUB" \
+                  > test-audit-wire.json \
+                  2>> "${MY_TMP_DIR}/test-wire-audit.log"
     }
-    thaw || ( echo -e " FIRST CALL TO taler-helper-auditor-wire FAILED,\nRETRY 
AFTER TWO SECONDS..." | tee -a ${MY_TMP_DIR}/test-wire-audit.log
+    thaw || ( echo -e " FIRST CALL TO taler-helper-auditor-wire FAILED,\nRETRY 
AFTER TWO SECONDS..." | tee -a "${MY_TMP_DIR}/test-wire-audit.log"
              sleep 2
              thaw || exit_fail "wire audit failed" )
     echo -n "."
-    $VALGRIND taler-helper-auditor-wire -i -L DEBUG -c $CONF -m $MASTER_PUB > 
test-audit-wire-inc.json 2> ${MY_TMP_DIR}/test-wire-audit-inc.log || exit_fail 
"wire audit inc failed"
+    $VALGRIND taler-helper-auditor-wire \
+              -i \
+              -L DEBUG \
+              -c "$CONF" \
+              -m "$MASTER_PUB" \
+              > test-audit-wire-inc.json \
+              2> "${MY_TMP_DIR}/test-wire-audit-inc.log" \
+        || exit_fail "wire audit inc failed"
     echo -n "."
 
     echo " DONE"
@@ -247,16 +349,30 @@ function audit_only () {
 
 # Cleanup to run after the auditor
 function post_audit () {
-    taler-exchange-dbinit -c $CONF -g || exit_fail "exchange DB GC failed"
+    taler-exchange-dbinit \
+        -c "$CONF" \
+        -g \
+        || exit_fail "exchange DB GC failed"
 
     cleanup
     echo -n "TeXing ."
-    taler-helper-auditor-render.py test-audit-aggregation.json 
test-audit-coins.json test-audit-deposits.json test-audit-reserves.json 
test-audit-wire.json < ../../contrib/auditor-report.tex.j2 > test-report.tex || 
exit_fail "Renderer failed"
+    taler-helper-auditor-render.py \
+        test-audit-aggregation.json \
+        test-audit-coins.json \
+        test-audit-deposits.json \
+        test-audit-reserves.json \
+        test-audit-wire.json \
+        < ../../contrib/auditor-report.tex.j2 \
+        > test-report.tex \
+        || exit_fail "Renderer failed"
 
     echo -n "."
-    timeout 10 pdflatex test-report.tex >/dev/null || exit_fail "pdflatex 
failed"
+    timeout 10 pdflatex test-report.tex \
+            >/dev/null \
+        || exit_fail "pdflatex failed"
     echo -n "."
-    timeout 10 pdflatex test-report.tex >/dev/null
+    timeout 10 pdflatex test-report.tex \
+            >/dev/null
     echo " DONE"
 }
 
@@ -267,21 +383,28 @@ function post_audit () {
 # before auditor (to trigger pending wire transfers).
 # Pass "drain" as $2 to run a drain operation as well.
 function run_audit () {
-    pre_audit ${1:-no}
-    if test ${2:-no} = "drain"
+    pre_audit "${1:-no}"
+    if test "${2:-no}" = "drain"
     then
         echo -n "Starting exchange..."
-        taler-exchange-httpd -c "${CONF}" -L INFO 2> 
${MYDIR}/exchange-httpd-drain.err &
+        taler-exchange-httpd \
+            -c "${CONF}" \
+            -L INFO \
+            2> "${MYDIR}/exchange-httpd-drain.err" &
         EPID=$!
 
         # Wait for all services to be available
-        for n in `seq 1 50`
+        for n in $(seq 1 50)
         do
             echo -n "."
             sleep 0.1
             OK=0
             # exchange
-            wget http://localhost:8081/seed -o /dev/null -O /dev/null 
>/dev/null || continue
+            wget "http://localhost:8081/seed"; \
+                 -o /dev/null \
+                 -O /dev/null \
+                 >/dev/null \
+                || continue
             OK=1
             break
         done
@@ -290,40 +413,61 @@ function run_audit () {
 
         echo -n "Running taler-exchange-offline drain "
 
-        taler-exchange-offline -L DEBUG -c "${CONF}" \
-          drain TESTKUDOS:0.1 exchange-account-1 
payto://iban/SANDBOXX/DE360679?receiver-name=Exchange+Drain \
-          upload \
-          2> ${MY_TMP_DIR}/taler-exchange-offline-drain.log || exit_fail 
"offline draining failed"
-        kill -TERM $EPID
-        wait $EPID || true
+        taler-exchange-offline \
+            -L DEBUG \
+            -c "${CONF}" \
+            drain TESTKUDOS:0.1 \
+            exchange-account-1 
payto://iban/SANDBOXX/DE360679?receiver-name=Exchange+Drain \
+            upload \
+            2> "${MY_TMP_DIR}/taler-exchange-offline-drain.log" \
+            || exit_fail "offline draining failed"
+        kill -TERM "$EPID"
+        wait "$EPID" || true
         unset EPID
         echo -n "Running taler-exchange-drain ..."
-        echo "\n" | taler-exchange-drain -L DEBUG -c $CONF 2> 
${MY_TMP_DIR}/taler-exchange-drain.log || exit_fail "FAIL"
+        printf "\n" | taler-exchange-drain \
+                        -L DEBUG \
+                        -c "$CONF" \
+                        2> "${MY_TMP_DIR}/taler-exchange-drain.log" \
+            || exit_fail "FAIL"
         echo " DONE"
 
         echo -n "Running taler-exchange-transfer ..."
-        taler-exchange-transfer -L INFO -t -c $CONF 2> 
${MY_TMP_DIR}/drain-transfer.log || exit_fail "FAIL"
+        taler-exchange-transfer \
+            -L INFO \
+            -t \
+            -c "$CONF" \
+            2> "${MY_TMP_DIR}/drain-transfer.log" \
+            || exit_fail "FAIL"
         echo " DONE"
 
-        export LIBEUFIN_NEXUS_USERNAME=exchange
-        export LIBEUFIN_NEXUS_PASSWORD=x
-        export LIBEUFIN_NEXUS_URL=http://localhost:8082/
-        cd $MY_TMP_DIR
-        PAIN_UUID=`libeufin-cli accounts list-payments exchange-nexus | jq 
.initiatedPayments[] | jq 'select(.submitted==false)' | jq -r 
.paymentInitiationId`
+        export LIBEUFIN_NEXUS_USERNAME="exchange"
+        export LIBEUFIN_NEXUS_PASSWORD="x"
+        export LIBEUFIN_NEXUS_URL="http://localhost:8082/";
+        cd "$MY_TMP_DIR"
+        PAIN_UUID=$(libeufin-cli accounts list-payments exchange-nexus | jq 
.initiatedPayments[] | jq 'select(.submitted==false)' | jq -r 
.paymentInitiationId)
         if test -z "${PAIN_UUID}"
         then
             echo -n "Payment likely already submitted, running submit-payments 
without UUID anyway ..."
-            libeufin-cli accounts submit-payments exchange-nexus
+            libeufin-cli accounts \
+                         submit-payments \
+                         exchange-nexus
         else
             echo -n "Running payment submission for transaction ${PAIN_UUID} 
..."
-            libeufin-cli accounts submit-payments --payment-uuid ${PAIN_UUID} 
exchange-nexus
+            libeufin-cli accounts \
+                         submit-payments \
+                         --payment-uuid "${PAIN_UUID}" \
+                         exchange-nexus
         fi
         echo " DONE"
         echo -n "Import outgoing transactions..."
-        libeufin-cli accounts fetch-transactions \
-           --range-type since-last --level report exchange-nexus
+        libeufin-cli accounts \
+                     fetch-transactions \
+                     --range-type since-last \
+                     --level report \
+                     exchange-nexus
         echo " DONE"
-        cd $ORIGIN
+        cd "$ORIGIN"
     fi
     audit_only
     post_audit
@@ -334,21 +478,19 @@ function run_audit () {
 function full_reload()
 {
     echo "Doing full reload of the database ($BASEDB - $DB)... "
-    dropdb $DB 2> /dev/null || true
-    createdb -T template0 $DB || exit_skip "could not create database $DB (at 
$PGHOST)"
+    dropdb "$DB" 2> /dev/null || true
+    createdb -T template0 "$DB" \
+        || exit_skip "could not create database $DB (at $PGHOST)"
     # Import pre-generated database, -q(ietly) using single (-1) transaction
-    psql -Aqt $DB -q -1 -f ${BASEDB}.sql > /dev/null || exit_skip "Failed to 
load database $DB from ${BASEDB}.sql"
+    psql -Aqt "$DB" \
+         -q \
+         -1 \
+         -f "${BASEDB}.sql" \
+         > /dev/null \
+        || exit_skip "Failed to load database $DB from ${BASEDB}.sql"
     echo "DONE"
     # Technically, this call shouldn't be needed as libeufin should already be 
stopped here...
     stop_libeufin
-    cd $MYDIR
-    rm -f ${DB}-nexus.sqlite3 ${DB}-sandbox.sqlite3 2> /dev/null || true # 
libeufin
-    echo -n "Loading libeufin Nexus basedb: ${BASEDB}-libeufin-nexus.sql "
-    sqlite3 ${DB}-nexus.sqlite3 < ${BASEDB}-libeufin-nexus.sql || exit_skip 
"Failed to load Nexus database"
-    echo "DONE"
-    echo -n "Loading libeufin Sandbox basedb: ${BASEDB}-libeufin-sandbox.sql "
-    sqlite3 ${DB}-sandbox.sqlite3 < ${BASEDB}-libeufin-sandbox.sql || 
exit_skip "Failed to load Sandbox database"
-    cd $ORIGIN
     echo "DONE"
 }
 
@@ -382,78 +524,78 @@ function test_0() {
 
     echo PASS
 
-    LOSS=`jq -r .total_bad_sig_loss < test-audit-aggregation.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_bad_sig_loss < test-audit-aggregation.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong total bad sig loss from aggregation, got unexpected 
loss of $LOSS"
     fi
-    LOSS=`jq -r .irregular_loss < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .irregular_loss < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong total bad sig loss from coins, got unexpected loss of 
$LOSS"
     fi
-    LOSS=`jq -r .total_bad_sig_loss < test-audit-reserves.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_bad_sig_loss < test-audit-reserves.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong total bad sig loss from reserves, got unexpected loss 
of $LOSS"
     fi
 
     echo -n "Test for wire amounts... "
-    WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_in_delta_plus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta plus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_in_delta_minus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta minus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_out_delta_plus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta plus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_out_delta_minus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta minus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_misattribution_in < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_misattribution_in < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total misattribution in wrong, got $WIRED"
     fi
-    echo PASS
+    echo "PASS"
 
     echo -n "Checking for unexpected arithmetic differences "
-    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-aggregation.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_plus < test-audit-aggregation.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from aggregations, got unexpected 
plus of $LOSS"
     fi
-    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-aggregation.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_minus < test-audit-aggregation.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from aggregation, got unexpected 
minus of $LOSS"
     fi
-    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_plus < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from coins, got unexpected plus of 
$LOSS"
     fi
-    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_minus < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from coins, got unexpected minus of 
$LOSS"
     fi
-    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-reserves.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_plus < test-audit-reserves.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from reserves, got unexpected plus 
of $LOSS"
     fi
-    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-reserves.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_minus < test-audit-reserves.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from reserves, got unexpected minus 
of $LOSS"
     fi
@@ -461,11 +603,11 @@ function test_0() {
     jq -e .amount_arithmetic_inconsistencies[0] < test-audit-aggregation.json 
> /dev/null && exit_fail "Unexpected arithmetic inconsistencies from 
aggregations detected in ordinary run"
     jq -e .amount_arithmetic_inconsistencies[0] < test-audit-coins.json > 
/dev/null && exit_fail "Unexpected arithmetic inconsistencies from coins 
detected in ordinary run"
     jq -e .amount_arithmetic_inconsistencies[0] < test-audit-reserves.json > 
/dev/null && exit_fail "Unexpected arithmetic inconsistencies from reserves 
detected in ordinary run"
-    echo PASS
+    echo "PASS"
 
     echo -n "Checking for unexpected wire out differences "
     jq -e .wire_out_inconsistencies[0] < test-audit-aggregation.json > 
/dev/null && exit_fail "Unexpected wire out inconsistencies detected in 
ordinary run"
-    echo PASS
+    echo "PASS"
 
     # cannot easily undo aggregator, hence full reload
     full_reload
@@ -483,22 +625,48 @@ function test_1() {
     echo "Checking output"
     # if an emergency was detected, that is a bug and we should fail
     echo -n "Test for emergencies... "
-    jq -e .emergencies[0] < test-audit-coins.json > /dev/null && exit_fail 
"Unexpected emergency detected in ordinary run" || echo PASS
+    jq -e .emergencies[0] \
+       < test-audit-coins.json \
+       > /dev/null \
+        && exit_fail "Unexpected emergency detected in ordinary run";
+    echo "PASS"
     echo -n "Test for emergencies by count... "
-    jq -e .emergencies_by_count[0] < test-audit-coins.json > /dev/null && 
exit_fail "Unexpected emergency by count detected in ordinary run" || echo PASS
+    jq -e .emergencies_by_count[0] \
+       < test-audit-coins.json \
+       > /dev/null \
+        && exit_fail "Unexpected emergency by count detected in ordinary run"
+    echo "PASS"
 
     echo -n "Test for wire inconsistencies... "
-    jq -e .wire_out_amount_inconsistencies[0] < test-audit-wire.json > 
/dev/null && exit_fail "Unexpected wire out inconsistency detected in ordinary 
run"
-    jq -e .reserve_in_amount_inconsistencies[0] < test-audit-wire.json > 
/dev/null && exit_fail "Unexpected reserve in inconsistency detected in 
ordinary run"
-    jq -e .misattribution_inconsistencies[0] < test-audit-wire.json > 
/dev/null && exit_fail "Unexpected misattribution inconsistency detected in 
ordinary run"
-    jq -e .row_inconsistencies[0] < test-audit-wire.json > /dev/null && 
exit_fail "Unexpected row inconsistency detected in ordinary run"
-    jq -e .row_minor_inconsistencies[0] < test-audit-wire.json > /dev/null && 
exit_fail "Unexpected minor row inconsistency detected in ordinary run"
-    jq -e .wire_format_inconsistencies[0] < test-audit-wire.json > /dev/null 
&& exit_fail "Unexpected wire format inconsistencies detected in ordinary run"
+    jq -e .wire_out_amount_inconsistencies[0] \
+       < test-audit-wire.json \
+       > /dev/null \
+        && exit_fail "Unexpected wire out inconsistency detected in ordinary 
run"
+    jq -e .reserve_in_amount_inconsistencies[0] \
+       < test-audit-wire.json \
+       > /dev/null \
+        && exit_fail "Unexpected reserve in inconsistency detected in ordinary 
run"
+    jq -e .misattribution_inconsistencies[0] \
+       < test-audit-wire.json \
+       > /dev/null \
+        && exit_fail "Unexpected misattribution inconsistency detected in 
ordinary run"
+    jq -e .row_inconsistencies[0] \
+       < test-audit-wire.json \
+       > /dev/null \
+        && exit_fail "Unexpected row inconsistency detected in ordinary run"
+    jq -e .row_minor_inconsistencies[0] \
+       < test-audit-wire.json \
+       > /dev/null \
+        && exit_fail "Unexpected minor row inconsistency detected in ordinary 
run"
+    jq -e .wire_format_inconsistencies[0] \
+       < test-audit-wire.json \
+       > /dev/null \
+        && exit_fail "Unexpected wire format inconsistencies detected in 
ordinary run"
 
     # TODO: check operation balances are correct (once we have all transaction 
types and wallet is deterministic)
     # TODO: check revenue summaries are correct (once we have all transaction 
types and wallet is deterministic)
 
-    echo PASS
+    echo "PASS"
 
     echo -n "Check for lag detection... "
 
@@ -507,10 +675,13 @@ function test_1() {
     # re-generating the test database as we do not
     # report lag of less than 1h (see GRACE_PERIOD in
     # taler-helper-auditor-wire.c)
-    jq -e .lag_details[0] < test-audit-wire.json > /dev/null || exit_fail "Lag 
not detected in run without aggregator"
+    jq -e .lag_details[0] \
+       < test-audit-wire.json \
+       > /dev/null \
+        || exit_fail "Lag not detected in run without aggregator"
 
-    LAG=`jq -r .total_amount_lag < test-audit-wire.json`
-    if test $LAG = "TESTKUDOS:0"
+    LAG=$(jq -r .total_amount_lag < test-audit-wire.json)
+    if [ "$LAG" = "TESTKUDOS:0" ]
     then
         exit_fail "Expected total lag to be non-zero"
     fi
@@ -518,28 +689,28 @@ function test_1() {
 
 
     echo -n "Test for wire amounts... "
-    WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_in_delta_plus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta plus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_in_delta_minus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta minus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_out_delta_plus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta plus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_out_delta_minus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta minus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_misattribution_in < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_misattribution_in < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total misattribution in wrong, got $WIRED"
     fi
@@ -552,41 +723,43 @@ function test_1() {
 function test_2() {
 
     echo "===========2: reserves_in inconsistency ==========="
-    echo "UPDATE exchange.reserves_in SET credit_val=5 WHERE 
reserve_in_serial_id=1" | psql -At $DB
+    echo "UPDATE exchange.reserves_in SET credit_val=5 WHERE 
reserve_in_serial_id=1" \
+        | psql -At "$DB"
 
     run_audit
 
     echo -n "Testing inconsistency detection... "
-    ROW=`jq .reserve_in_amount_inconsistencies[0].row < test-audit-wire.json`
-    if test $ROW != 1
+    ROW=$(jq .reserve_in_amount_inconsistencies[0].row < test-audit-wire.json)
+    if [ "$ROW" != 1 ]
     then
         exit_fail "Row $ROW is wrong"
     fi
-    WIRED=`jq -r .reserve_in_amount_inconsistencies[0].amount_wired < 
test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:10"
+    WIRED=$(jq -r .reserve_in_amount_inconsistencies[0].amount_wired < 
test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:10" ]
     then
         exit_fail "Amount wrong"
     fi
-    EXPECTED=`jq -r 
.reserve_in_amount_inconsistencies[0].amount_exchange_expected < 
test-audit-wire.json`
-    if test $EXPECTED != "TESTKUDOS:5"
+    EXPECTED=$(jq -r 
.reserve_in_amount_inconsistencies[0].amount_exchange_expected < 
test-audit-wire.json)
+    if [ "$EXPECTED" != "TESTKUDOS:5" ]
     then
         exit_fail "Expected amount wrong"
     fi
 
-    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_in_delta_minus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong total wire_in_delta_minus, got $WIRED"
     fi
-    DELTA=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
-    if test $DELTA != "TESTKUDOS:5"
+    DELTA=$(jq -r .total_wire_in_delta_plus < test-audit-wire.json)
+    if [ "$DELTA" != "TESTKUDOS:5" ]
     then
         exit_fail "Expected total wire delta plus wrong, got $DELTA"
     fi
-    echo PASS
+    echo "PASS"
 
     # Undo database modification
-    echo "UPDATE exchange.reserves_in SET credit_val=10 WHERE 
reserve_in_serial_id=1" | psql -Aqt $DB
+    echo "UPDATE exchange.reserves_in SET credit_val=10 WHERE 
reserve_in_serial_id=1" \
+        | psql -Aqt "$DB"
 
 }
 
@@ -596,60 +769,61 @@ function test_2() {
 function test_3() {
 
     echo "===========3: reserves_in inconsistency==========="
-    echo "UPDATE exchange.reserves_in SET credit_val=15 WHERE 
reserve_in_serial_id=1" | psql -Aqt $DB
+    echo "UPDATE exchange.reserves_in SET credit_val=15 WHERE 
reserve_in_serial_id=1" \
+        | psql -Aqt "$DB"
 
     run_audit
 
-    EXPECTED=`jq -r .reserve_balance_summary_wrong_inconsistencies[0].auditor 
< test-audit-reserves.json`
-    if test $EXPECTED != "TESTKUDOS:5.01"
+    EXPECTED=$(jq -r .reserve_balance_summary_wrong_inconsistencies[0].auditor 
< test-audit-reserves.json)
+    if [ "$EXPECTED" != "TESTKUDOS:5.01" ]
     then
         exit_fail "Expected reserve balance summary amount wrong, got 
$EXPECTED (auditor)"
     fi
 
-    EXPECTED=`jq -r .reserve_balance_summary_wrong_inconsistencies[0].exchange 
< test-audit-reserves.json`
-    if test $EXPECTED != "TESTKUDOS:0.01"
+    EXPECTED=$(jq -r 
.reserve_balance_summary_wrong_inconsistencies[0].exchange < 
test-audit-reserves.json)
+    if [ "$EXPECTED" != "TESTKUDOS:0.01" ]
     then
         exit_fail "Expected reserve balance summary amount wrong, got 
$EXPECTED (exchange)"
     fi
 
-    WIRED=`jq -r .total_irregular_loss < test-audit-reserves.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_irregular_loss < test-audit-reserves.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong total loss from insufficient balance, got $WIRED"
     fi
 
-    ROW=`jq -e .reserve_in_amount_inconsistencies[0].row < 
test-audit-wire.json`
-    if test $ROW != 1
+    ROW=$(jq -e .reserve_in_amount_inconsistencies[0].row < 
test-audit-wire.json)
+    if [ "$ROW" != 1 ]
     then
         exit_fail "Row wrong, got $ROW"
     fi
 
-    WIRED=`jq -r 
.reserve_in_amount_inconsistencies[0].amount_exchange_expected < 
test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:15"
+    WIRED=$(jq -r 
.reserve_in_amount_inconsistencies[0].amount_exchange_expected < 
test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:15" ]
     then
         exit_fail "Wrong amount_exchange_expected, got $WIRED"
     fi
 
-    WIRED=`jq -r .reserve_in_amount_inconsistencies[0].amount_wired < 
test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:10"
+    WIRED=$(jq -r .reserve_in_amount_inconsistencies[0].amount_wired < 
test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:10" ]
     then
         exit_fail "Wrong amount_wired, got $WIRED"
     fi
 
-    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:5"
+    WIRED=$(jq -r .total_wire_in_delta_minus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:5" ]
     then
         exit_fail "Wrong total wire_in_delta_minus, got $WIRED"
     fi
 
-    WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_in_delta_plus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong total wire_in_delta_plus, got $WIRED"
     fi
 
     # Undo database modification
-    echo "UPDATE exchange.reserves_in SET credit_val=10 WHERE 
reserve_in_serial_id=1" | psql -Aqt $DB
+    echo "UPDATE exchange.reserves_in SET credit_val=10 WHERE 
reserve_in_serial_id=1" | psql -Aqt "$DB"
 
 }
 
@@ -660,10 +834,16 @@ function test_4() {
 
     echo "===========4: deposit wire target wrong================="
     # Original target bank account was 43, changing to 44
-    SERIAL=`echo "SELECT deposit_serial_id FROM exchange.deposits WHERE 
amount_with_fee_val=3 AND amount_with_fee_frac=0 ORDER BY deposit_serial_id 
LIMIT 1" | psql $DB -Aqt`
-    OLD_WIRE_ID=`echo "SELECT wire_target_h_payto FROM exchange.deposits WHERE 
deposit_serial_id=${SERIAL};"  | psql $DB -Aqt`
-    NEW_WIRE_ID=`echo "INSERT INTO exchange.wire_targets (payto_uri, 
wire_target_h_payto) VALUES 
('payto://x-taler-bank/localhost/testuser-xxlargtp', 
'\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b');"  | psql 
$DB -Aqt`
-    echo "UPDATE exchange.deposits SET 
wire_target_h_payto='\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b'
 WHERE deposit_serial_id=${SERIAL}" | psql -Aqt $DB
+    SERIAL=$(echo "SELECT deposit_serial_id FROM exchange.deposits WHERE 
amount_with_fee_val=3 AND amount_with_fee_frac=0 ORDER BY deposit_serial_id 
LIMIT 1" | psql "$DB" -Aqt)
+    OLD_WIRE_ID=$(echo "SELECT wire_target_h_payto FROM exchange.deposits 
WHERE deposit_serial_id=${SERIAL};"  | psql "$DB" -Aqt)
+# shellcheck disable=SC2028
+    echo "INSERT INTO exchange.wire_targets (payto_uri, wire_target_h_payto) 
VALUES ('payto://x-taler-bank/localhost/testuser-xxlargtp', 
'\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b');" \
+        | psql "$DB" \
+               -Aqt \
+               > /dev/null
+# shellcheck disable=SC2028
+    echo "UPDATE exchange.deposits SET 
wire_target_h_payto='\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b'
 WHERE deposit_serial_id=${SERIAL}" \
+        | psql -Aqt "$DB"
 
     run_audit
 
@@ -671,33 +851,33 @@ function test_4() {
 
     jq -e .bad_sig_losses[0] < test-audit-coins.json > /dev/null || exit_fail 
"Bad signature not detected"
 
-    ROW=`jq -e .bad_sig_losses[0].row < test-audit-coins.json`
-    if test $ROW != ${SERIAL}
+    ROW=$(jq -e .bad_sig_losses[0].row < test-audit-coins.json)
+    if [ "$ROW" != "${SERIAL}" ]
     then
         exit_fail "Row wrong, got $ROW"
     fi
 
-    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:3"
+    LOSS=$(jq -r .bad_sig_losses[0].loss < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:3" ]
     then
         exit_fail "Wrong deposit bad signature loss, got $LOSS"
     fi
 
-    OP=`jq -r .bad_sig_losses[0].operation < test-audit-coins.json`
-    if test $OP != "deposit"
+    OP=$(jq -r .bad_sig_losses[0].operation < test-audit-coins.json)
+    if [ "$OP" != "deposit" ]
     then
         exit_fail "Wrong operation, got $OP"
     fi
 
-    LOSS=`jq -r .irregular_loss < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:3"
+    LOSS=$(jq -r .irregular_loss < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:3" ]
     then
         exit_fail "Wrong total bad sig loss, got $LOSS"
     fi
 
     echo PASS
     # Undo:
-    echo "UPDATE exchange.deposits SET wire_target_h_payto='$OLD_WIRE_ID' 
WHERE deposit_serial_id=${SERIAL}" | psql -Aqt $DB
+    echo "UPDATE exchange.deposits SET wire_target_h_payto='$OLD_WIRE_ID' 
WHERE deposit_serial_id=${SERIAL}" | psql -Aqt "$DB"
 
 }
 
@@ -708,40 +888,42 @@ function test_4() {
 function test_5() {
     echo "===========5: deposit contract hash wrong================="
     # Modify h_wire hash, so it is inconsistent with 'wire'
-    SERIAL=`echo "SELECT deposit_serial_id FROM exchange.deposits WHERE 
amount_with_fee_val=3 AND amount_with_fee_frac=0 ORDER BY deposit_serial_id 
LIMIT 1" | psql $DB -Aqt`
-    OLD_H=`echo "SELECT h_contract_terms FROM exchange.deposits WHERE 
deposit_serial_id=$SERIAL;" | psql $DB -Aqt`
-    echo "UPDATE exchange.deposits SET 
h_contract_terms='\x12bb676444955c98789f219148aa31899d8c354a63330624d3d143222cf3bb8b8e16f69accd5a8773127059b804c1955696bf551dd7be62719870613332aa8d5'
 WHERE deposit_serial_id=$SERIAL" | psql -Aqt $DB
+    SERIAL=$(echo "SELECT deposit_serial_id FROM exchange.deposits WHERE 
amount_with_fee_val=3 AND amount_with_fee_frac=0 ORDER BY deposit_serial_id 
LIMIT 1" | psql "$DB" -Aqt)
+    OLD_H=$(echo "SELECT h_contract_terms FROM exchange.deposits WHERE 
deposit_serial_id=$SERIAL;" | psql "$DB" -Aqt)
+# shellcheck disable=SC2028
+    echo "UPDATE exchange.deposits SET 
h_contract_terms='\x12bb676444955c98789f219148aa31899d8c354a63330624d3d143222cf3bb8b8e16f69accd5a8773127059b804c1955696bf551dd7be62719870613332aa8d5'
 WHERE deposit_serial_id=$SERIAL" \
+        | psql -Aqt "$DB"
 
     run_audit
 
     echo -n "Checking bad signature detection... "
-    ROW=`jq -e .bad_sig_losses[0].row < test-audit-coins.json`
-    if test $ROW != $SERIAL
+    ROW=$(jq -e .bad_sig_losses[0].row < test-audit-coins.json)
+    if [ "$ROW" != "$SERIAL" ]
     then
         exit_fail "Row wrong, got $ROW"
     fi
 
-    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:3"
+    LOSS=$(jq -r .bad_sig_losses[0].loss < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:3" ]
     then
         exit_fail "Wrong deposit bad signature loss, got $LOSS"
     fi
 
-    OP=`jq -r .bad_sig_losses[0].operation < test-audit-coins.json`
-    if test $OP != "deposit"
+    OP=$(jq -r .bad_sig_losses[0].operation < test-audit-coins.json)
+    if [ "$OP" != "deposit" ]
     then
         exit_fail "Wrong operation, got $OP"
     fi
 
-    LOSS=`jq -r .irregular_loss < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:3"
+    LOSS=$(jq -r .irregular_loss < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:3" ]
     then
         exit_fail "Wrong total bad sig loss, got $LOSS"
     fi
     echo PASS
 
     # Undo:
-    echo "UPDATE exchange.deposits SET h_contract_terms='${OLD_H}' WHERE 
deposit_serial_id=$SERIAL" | psql -Aqt $DB
+    echo "UPDATE exchange.deposits SET h_contract_terms='${OLD_H}' WHERE 
deposit_serial_id=$SERIAL" | psql -Aqt "$DB"
 
 }
 
@@ -751,38 +933,40 @@ function test_5() {
 function test_6() {
     echo "===========6: known_coins signature wrong================="
     # Modify denom_sig, so it is wrong
-    OLD_SIG=`echo 'SELECT denom_sig FROM exchange.known_coins LIMIT 1;' | psql 
$DB -Aqt`
-    COIN_PUB=`echo "SELECT coin_pub FROM exchange.known_coins WHERE 
denom_sig='$OLD_SIG';"  | psql $DB -Aqt`
-    echo "UPDATE exchange.known_coins SET 
denom_sig='\x0000000100000000287369672d76616c200a2028727361200a202028732023354238373142374339303644464330344242443045303935324641364246413246353730313937413131343735374632463232333239464444314632464333344539393941333636343033423341313332444446423941383335383346453635444237433543444530444145303537443836333643454142383446384332384334444630414436303034343041303835343536303937383343443133323939373642364243343731304132463241413241443541383330343243434
 [...]
+    OLD_SIG=$(echo 'SELECT denom_sig FROM exchange.known_coins LIMIT 1;' | 
psql "$DB" -Aqt)
+    COIN_PUB=$(echo "SELECT coin_pub FROM exchange.known_coins WHERE 
denom_sig='$OLD_SIG';"  | psql "$DB" -Aqt)
+# shellcheck disable=SC2028
+    echo "UPDATE exchange.known_coins SET 
denom_sig='\x0000000100000000287369672d76616c200a2028727361200a202028732023354238373142374339303644464330344242443045303935324641364246413246353730313937413131343735374632463232333239464444314632464333344539393941333636343033423341313332444446423941383335383346453635444237433543444530444145303537443836333643454142383446384332384334444630414436303034343041303835343536303937383343443133323939373642364243343731304132463241413241443541383330343243434
 [...]
+        | psql -Aqt "$DB"
 
     run_audit
 
-    ROW=`jq -e .bad_sig_losses[0].row < test-audit-coins.json`
-    if test $ROW != "1"
+    ROW=$(jq -e .bad_sig_losses[0].row < test-audit-coins.json)
+    if [ "$ROW" != "1" ]
     then
         exit_fail "Row wrong, got $ROW"
     fi
 
-    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-coins.json`
-    if test $LOSS == "TESTKUDOS:0"
+    LOSS=$(jq -r .bad_sig_losses[0].loss < test-audit-coins.json)
+    if [ "$LOSS" == "TESTKUDOS:0" ]
     then
         exit_fail "Wrong deposit bad signature loss, got $LOSS"
     fi
 
-    OP=`jq -r .bad_sig_losses[0].operation < test-audit-coins.json`
-    if test $OP != "melt"
+    OP=$(jq -r .bad_sig_losses[0].operation < test-audit-coins.json)
+    if [ "$OP" != "melt" ]
     then
         exit_fail "Wrong operation, got $OP"
     fi
 
-    LOSS=`jq -r .irregular_loss < test-audit-coins.json`
-    if test $LOSS == "TESTKUDOS:0"
+    LOSS=$(jq -r .irregular_loss < test-audit-coins.json)
+    if [ "$LOSS" == "TESTKUDOS:0" ]
     then
         exit_fail "Wrong total bad sig loss, got $LOSS"
     fi
 
     # Undo
-    echo "UPDATE exchange.known_coins SET denom_sig='$OLD_SIG' WHERE 
coin_pub='$COIN_PUB'" | psql -Aqt $DB
+    echo "UPDATE exchange.known_coins SET denom_sig='$OLD_SIG' WHERE 
coin_pub='$COIN_PUB'" | psql -Aqt "$DB"
 
 }
 
@@ -792,49 +976,51 @@ function test_6() {
 function test_7() {
     echo "===========7: reserves_out signature wrong================="
     # Modify reserve_sig, so it is bogus
-    HBE=`echo 'SELECT h_blind_ev FROM exchange.reserves_out LIMIT 1;' | psql 
$DB -Aqt`
-    OLD_SIG=`echo "SELECT reserve_sig FROM exchange.reserves_out WHERE 
h_blind_ev='$HBE';" | psql $DB -Aqt`
-    A_VAL=`echo "SELECT amount_with_fee_val FROM exchange.reserves_out WHERE 
h_blind_ev='$HBE';" | psql $DB -Aqt`
-    A_FRAC=`echo "SELECT amount_with_fee_frac FROM exchange.reserves_out WHERE 
h_blind_ev='$HBE';" | psql $DB -Aqt`
+    HBE=$(echo 'SELECT h_blind_ev FROM exchange.reserves_out LIMIT 1;' | psql 
"$DB" -Aqt)
+    OLD_SIG=$(echo "SELECT reserve_sig FROM exchange.reserves_out WHERE 
h_blind_ev='$HBE';" | psql "$DB" -Aqt)
+    A_VAL=$(echo "SELECT amount_with_fee_val FROM exchange.reserves_out WHERE 
h_blind_ev='$HBE';" | psql "$DB" -Aqt)
+    A_FRAC=$(echo "SELECT amount_with_fee_frac FROM exchange.reserves_out 
WHERE h_blind_ev='$HBE';" | psql "$DB" -Aqt)
     # Normalize, we only deal with cents in this test-case
-    A_FRAC=`expr $A_FRAC / 1000000 || true`
-    echo "UPDATE exchange.reserves_out SET 
reserve_sig='\x9ef381a84aff252646a157d88eded50f708b2c52b7120d5a232a5b628f9ced6d497e6652d986b581188fb014ca857fd5e765a8ccc4eb7e2ce9edcde39accaa4b'
 WHERE h_blind_ev='$HBE'" | psql -Aqt $DB
+    A_FRAC=$(( A_FRAC / 1000000))
+# shellcheck disable=SC2028
+    echo "UPDATE exchange.reserves_out SET 
reserve_sig='\x9ef381a84aff252646a157d88eded50f708b2c52b7120d5a232a5b628f9ced6d497e6652d986b581188fb014ca857fd5e765a8ccc4eb7e2ce9edcde39accaa4b'
 WHERE h_blind_ev='$HBE'" \
+        | psql -Aqt "$DB"
 
     run_audit
 
-    OP=`jq -r .bad_sig_losses[0].operation < test-audit-reserves.json`
-    if test $OP != "withdraw"
+    OP=$(jq -r .bad_sig_losses[0].operation < test-audit-reserves.json)
+    if [ "$OP" != "withdraw" ]
     then
         exit_fail "Wrong operation, got $OP"
     fi
 
-    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-reserves.json`
-    LOSS_TOTAL=`jq -r .total_bad_sig_loss < test-audit-reserves.json`
-    if test $LOSS != $LOSS_TOTAL
+    LOSS=$(jq -r .bad_sig_losses[0].loss < test-audit-reserves.json)
+    LOSS_TOTAL=$(jq -r .total_bad_sig_loss < test-audit-reserves.json)
+    if [ "$LOSS" != "$LOSS_TOTAL" ]
     then
         exit_fail "Expected loss $LOSS and total loss $LOSS_TOTAL do not match"
     fi
-    if test $A_FRAC != 0
+    if [ "$A_FRAC" != 0 ]
     then
-        if [ $A_FRAC -lt 10 ]
+        if [ "$A_FRAC" -lt 10 ]
         then
             A_PREV="0"
         else
             A_PREV=""
         fi
-        if test $LOSS != "TESTKUDOS:$A_VAL.$A_PREV$A_FRAC"
+        if [ "$LOSS" != "TESTKUDOS:$A_VAL.$A_PREV$A_FRAC" ]
         then
             exit_fail "Expected loss TESTKUDOS:$A_VAL.$A_PREV$A_FRAC but got 
$LOSS"
         fi
     else
-        if test $LOSS != "TESTKUDOS:$A_VAL"
+        if [ "$LOSS" != "TESTKUDOS:$A_VAL" ]
         then
             exit_fail "Expected loss TESTKUDOS:$A_VAL but got $LOSS"
         fi
     fi
 
     # Undo:
-    echo "UPDATE exchange.reserves_out SET reserve_sig='$OLD_SIG' WHERE 
h_blind_ev='$HBE'" | psql -Aqt $DB
+    echo "UPDATE exchange.reserves_out SET reserve_sig='$OLD_SIG' WHERE 
h_blind_ev='$HBE'" | psql -Aqt "$DB"
 
 }
 
@@ -845,71 +1031,76 @@ function test_8() {
     echo "===========8: wire-transfer-subject disagreement==========="
     # Technically, this call shouldn't be needed, as libeufin should already 
be stopped here.
     stop_libeufin
-    cd $MYDIR
-    OLD_ID=`echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND 
currency='TESTKUDOS' ORDER BY id LIMIT 1;" | sqlite3 ${DB}-nexus.sqlite3` || 
exit_fail "Failed to SELECT FROM NexusBankTransactions nexus DB!"
-    OLD_WTID=`echo "SELECT reservePublicKey FROM TalerIncomingPayments WHERE 
payment='$OLD_ID';" | sqlite3 ${DB}-nexus.sqlite3`
+    cd "$MYDIR"
+    OLD_ID=$(echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND 
currency='TESTKUDOS' ORDER BY id LIMIT 1;" | psql "${DB}") \
+        || exit_fail "Failed to SELECT FROM NexusBankTransactions nexus DB!"
+    OLD_WTID=$(echo "SELECT reservePublicKey FROM TalerIncomingPayments WHERE 
payment='$OLD_ID';" \
+                   | pqsl "${DB}")
     NEW_WTID="CK9QBFY972KR32FVA1MW958JWACEB6XCMHHKVFMCH1A780Q12SVG"
-    echo "UPDATE TalerIncomingPayments SET reservePublicKey='$NEW_WTID' WHERE 
payment='$OLD_ID';" | sqlite3 ${DB}-nexus.sqlite3 || exit_fail "Failed to 
update TalerIncomingPayments"
-    cd $ORIGIN
+    echo "UPDATE TalerIncomingPayments SET reservePublicKey='$NEW_WTID' WHERE 
payment='$OLD_ID';" \
+        | psql "${DB}" \
+        || exit_fail "Failed to update TalerIncomingPayments"
+    cd "$ORIGIN"
 
     run_audit
 
     echo -n "Testing inconsistency detection... "
-    DIAG=`jq -r .reserve_in_amount_inconsistencies[0].diagnostic < 
test-audit-wire.json`
-    if test "x$DIAG" != "xwire subject does not match"
+    DIAG=$(jq -r .reserve_in_amount_inconsistencies[0].diagnostic < 
test-audit-wire.json)
+    if [ "x$DIAG" != "xwire subject does not match" ]
     then
         exit_fail "Diagnostic wrong: $DIAG (0)"
     fi
-    WTID=`jq -r .reserve_in_amount_inconsistencies[0].reserve_pub < 
test-audit-wire.json`
-    if test x$WTID != x"$OLD_WTID" -a x$WTID != x"$NEW_WTID"
+    WTID=$(jq -r .reserve_in_amount_inconsistencies[0].reserve_pub < 
test-audit-wire.json)
+    if [ "x$WTID" != x"$OLD_WTID" ] && [ "x$WTID" != "x$NEW_WTID" ]
     then
         exit_fail "WTID reported wrong: $WTID"
     fi
-    EX_A=`jq -r .reserve_in_amount_inconsistencies[0].amount_exchange_expected 
< test-audit-wire.json`
-    if test x$WTID = x$OLD_WTID -a x$EX_A != x"TESTKUDOS:10"
+    EX_A=$(jq -r 
.reserve_in_amount_inconsistencies[0].amount_exchange_expected < 
test-audit-wire.json)
+    if [ "$WTID" = "$OLD_WTID" ] && [ "$EX_A" != "TESTKUDOS:10" ]
     then
         exit_fail "Amount reported wrong: $EX_A"
     fi
-    if test x$WTID = x$NEW_WTID -a x$EX_A != x"TESTKUDOS:0"
+    if [ "$WTID" = "$NEW_WTID" ] && [ "$EX_A" != "TESTKUDOS:0" ]
     then
         exit_fail "Amount reported wrong: $EX_A"
     fi
-    DIAG=`jq -r .reserve_in_amount_inconsistencies[1].diagnostic < 
test-audit-wire.json`
-    if test "x$DIAG" != "xwire subject does not match"
+    DIAG=$(jq -r .reserve_in_amount_inconsistencies[1].diagnostic < 
test-audit-wire.json)
+    if [ "$DIAG" != "wire subject does not match" ]
     then
         exit_fail "Diagnostic wrong: $DIAG (1)"
     fi
-    WTID=`jq -r .reserve_in_amount_inconsistencies[1].reserve_pub < 
test-audit-wire.json`
-    if test $WTID != "$OLD_WTID" -a $WTID != "$NEW_WTID"
+    WTID=$(jq -r .reserve_in_amount_inconsistencies[1].reserve_pub < 
test-audit-wire.json)
+    if [ "$WTID" != "$OLD_WTID" ] && [ "$WTID" != "$NEW_WTID" ]
     then
         exit_fail "WTID reported wrong: $WTID (wanted: $NEW_WTID or $OLD_WTID)"
     fi
-    EX_A=`jq -r .reserve_in_amount_inconsistencies[1].amount_exchange_expected 
< test-audit-wire.json`
-    if test $WTID = "$OLD_WTID" -a $EX_A != "TESTKUDOS:10"
+    EX_A=$(jq -r 
.reserve_in_amount_inconsistencies[1].amount_exchange_expected < 
test-audit-wire.json)
+    if [ "$WTID" = "$OLD_WTID" ] && [ "$EX_A" != "TESTKUDOS:10" ]
     then
         exit_fail "Amount reported wrong: $EX_A"
     fi
-    if test $WTID = "$NEW_WTID" -a $EX_A != "TESTKUDOS:0"
+    if [ "$WTID" = "$NEW_WTID" ] && [ "$EX_A" != "TESTKUDOS:0" ]
     then
         exit_fail "Amount reported wrong: $EX_A"
     fi
 
-    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:10"
+    WIRED=$(jq -r .total_wire_in_delta_minus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:10" ]
     then
         exit_fail "Wrong total wire_in_delta_minus, got $WIRED"
     fi
-    DELTA=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
-    if test $DELTA != "TESTKUDOS:10"
+    DELTA=$(jq -r .total_wire_in_delta_plus < test-audit-wire.json)
+    if [ "$DELTA" != "TESTKUDOS:10" ]
     then
         exit_fail "Expected total wire delta plus wrong, got $DELTA"
     fi
-    echo PASS
+    echo "PASS"
 
     # Undo database modification
-    cd $MYDIR
-    echo "UPDATE TalerIncomingPayments SET reservePublicKey='$OLD_WTID' WHERE 
payment='$OLD_ID';" | sqlite3 ${DB}-nexus.sqlite3
-    cd $ORIGIN
+    cd "$MYDIR"
+    echo "UPDATE TalerIncomingPayments SET reservePublicKey='$OLD_WTID' WHERE 
payment='$OLD_ID';" \
+        | psql "${DB}"
+    cd "$ORIGIN"
 
 }
 
@@ -920,19 +1111,20 @@ function test_9() {
     echo "===========9: wire-origin disagreement==========="
     # Technically, this call shouldn't be needed, as libeufin should already 
be stopped here.
     stop_libeufin
-    OLD_ID=`echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND 
currency='TESTKUDOS' ORDER BY id LIMIT 1;" | sqlite3 
${MYDIR}/${DB}-nexus.sqlite3`
-    OLD_ACC=`echo "SELECT incomingPaytoUri FROM TalerIncomingPayments WHERE 
payment='$OLD_ID';" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3`
-    echo "UPDATE TalerIncomingPayments SET 
incomingPaytoUri='payto://iban/SANDBOXX/DE144373?receiver-name=New+Exchange+Company'
 WHERE payment='$OLD_ID';" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    OLD_ID=$(echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND 
currency='TESTKUDOS' ORDER BY id LIMIT 1;" | psql "${DB}")
+    OLD_ACC=$(echo "SELECT incomingPaytoUri FROM TalerIncomingPayments WHERE 
payment='$OLD_ID';" | psql "${DB}")
+    echo "UPDATE TalerIncomingPayments SET 
incomingPaytoUri='payto://iban/SANDBOXX/DE144373?receiver-name=New+Exchange+Company'
 WHERE payment='$OLD_ID';" \
+        | psql "${DB}"
 
     run_audit
 
     echo -n "Testing inconsistency detection... "
-    AMOUNT=`jq -r .misattribution_in_inconsistencies[0].amount < 
test-audit-wire.json`
+    AMOUNT=$(jq -r .misattribution_in_inconsistencies[0].amount < 
test-audit-wire.json)
     if test "x$AMOUNT" != "xTESTKUDOS:10"
     then
         exit_fail "Reported amount wrong: $AMOUNT"
     fi
-    AMOUNT=`jq -r .total_misattribution_in < test-audit-wire.json`
+    AMOUNT=$(jq -r .total_misattribution_in < test-audit-wire.json)
     if test "x$AMOUNT" != "xTESTKUDOS:10"
     then
         exit_fail "Reported total amount wrong: $AMOUNT"
@@ -940,30 +1132,31 @@ function test_9() {
     echo PASS
 
     # Undo database modification
-    echo "UPDATE TalerIncomingPayments SET incomingPaytoUri='$OLD_ACC' WHERE 
payment='$OLD_ID';" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    echo "UPDATE TalerIncomingPayments SET incomingPaytoUri='$OLD_ACC' WHERE 
payment='$OLD_ID';" \
+        | psql "${DB}"
 
 }
 
 
 # Test wire_in timestamp disagreement!
 function test_10() {
-    NOW_MS=`date +%s`000
+    NOW_MS=$(date +%s)000
     echo "===========10: wire-timestamp disagreement==========="
     # Technically, this call shouldn't be needed, as libeufin should already 
be stopped here.
     stop_libeufin
-    OLD_ID=`echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND 
currency='TESTKUDOS' ORDER BY id LIMIT 1;" | sqlite3 
${MYDIR}/${DB}-nexus.sqlite3`
-    OLD_DATE=`echo "SELECT timestampMs FROM TalerIncomingPayments WHERE 
payment='$OLD_ID';" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3`
-    echo "UPDATE TalerIncomingPayments SET timestampMs=$NOW_MS WHERE 
payment=$OLD_ID;" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    OLD_ID=$(echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND 
currency='TESTKUDOS' ORDER BY id LIMIT 1;" | psql "${DB}")
+    OLD_DATE=$(echo "SELECT timestampMs FROM TalerIncomingPayments WHERE 
payment='$OLD_ID';" | psql "${DB}")
+    echo "UPDATE TalerIncomingPayments SET timestampMs=$NOW_MS WHERE 
payment=$OLD_ID;" | psql "${DB}"
 
     run_audit
 
     echo -n "Testing inconsistency detection... "
-    DIAG=`jq -r .row_minor_inconsistencies[0].diagnostic < 
test-audit-wire.json`
+    DIAG=$(jq -r .row_minor_inconsistencies[0].diagnostic < 
test-audit-wire.json)
     if test "x$DIAG" != "xexecution date mismatch"
     then
         exit_fail "Reported diagnostic wrong: $DIAG"
     fi
-    TABLE=`jq -r .row_minor_inconsistencies[0].table < test-audit-wire.json`
+    TABLE=$(jq -r .row_minor_inconsistencies[0].table < test-audit-wire.json)
     if test "x$TABLE" != "xreserves_in"
     then
         exit_fail "Reported table wrong: $TABLE"
@@ -971,7 +1164,7 @@ function test_10() {
     echo PASS
 
     # Undo database modification
-    echo "UPDATE TalerIncomingPayments SET timestampMs='$OLD_DATE' WHERE 
payment=$OLD_ID;" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    echo "UPDATE TalerIncomingPayments SET timestampMs='$OLD_DATE' WHERE 
payment=$OLD_ID;" | psql "${DB}"
 
 }
 
@@ -983,91 +1176,94 @@ function test_11() {
     echo "===========11: spurious outgoing transfer ==========="
     # Technically, this call shouldn't be needed, as libeufin should already 
be stopped here.
     stop_libeufin
-    OLD_ID=`echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND 
currency='TESTKUDOS' ORDER BY id LIMIT 1;" | sqlite3 
${MYDIR}/${DB}-nexus.sqlite3`
-    OLD_TX=`echo "SELECT transactionJson FROM NexusBankTransactions WHERE 
id='$OLD_ID';" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3`
+    OLD_ID=$(echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND 
currency='TESTKUDOS' ORDER BY id LIMIT 1;" | psql "${DB}")
+    OLD_TX=$(echo "SELECT transactionJson FROM NexusBankTransactions WHERE 
id='$OLD_ID';" | psql "${DB}")
     # Change wire transfer to be FROM the exchange (#2) to elsewhere!
     # (Note: this change also causes a missing incoming wire transfer, but
     #  this test is only concerned about the outgoing wire transfer
     #  being detected as such, and we simply ignore the other
     #  errors being reported.)
-    OTHER_IBAN=`echo -e "SELECT iban FROM BankAccounts WHERE label='fortytwo'" 
| sqlite3 ${MYDIR}/${DB}-sandbox.sqlite3`
-    NEW_TX=$(echo "$OLD_TX" | jq 
.batches[0].batchTransactions[0].details.creditDebitIndicator='"DBIT"' | jq 
'del(.batches[0].batchTransactions[0].details.debtor)' | jq 
'del(.batches[0].batchTransactions[0].details.debtorAccount)' | jq 
'del(.batches[0].batchTransactions[0].details.debtorAgent)' | jq 
'.batches[0].batchTransactions[0].details.creditor'='{"name": "Forty Two"}' | 
jq .batches[0].batchTransactions[0].details.creditorAccount='{"iban": 
"'$OTHER_IBAN'"}' | jq .batches[0].batchTra [...]
-    echo -e "UPDATE NexusBankTransactions SET transactionJson='"$NEW_TX"' 
WHERE id=$OLD_ID" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    OTHER_IBAN=$(echo -e "SELECT iban FROM BankAccounts WHERE 
label='fortytwo'" | psql "${DB}")
+    NEW_TX=$(echo "$OLD_TX" | jq 
.batches[0].batchTransactions[0].details.creditDebitIndicator='"DBIT"' | jq 
'del(.batches[0].batchTransactions[0].details.debtor)' | jq 
'del(.batches[0].batchTransactions[0].details.debtorAccount)' | jq 
'del(.batches[0].batchTransactions[0].details.debtorAgent)' | jq 
'.batches[0].batchTransactions[0].details.creditor'='{"name": "Forty Two"}' | 
jq .batches[0].batchTransactions[0].details.creditorAccount='{"iban": 
"'"$OTHER_IBAN"'"}' | jq .batches[0].batchT [...]
+    echo -e "UPDATE NexusBankTransactions SET transactionJson='""$NEW_TX""' 
WHERE id=$OLD_ID" \
+        | psql "${DB}"
     # Now fake that the exchange prepared this payment (= it POSTed to 
/transfer)
     # This step is necessary, because the TWG table that accounts for outgoing
     # payments needs it.  Worth noting here is the column 'rawConfirmation' 
that
     # points to the transaction from the main Nexus ledger; without that 
column set,
     # a prepared payment won't appear as actually outgoing.
-    echo -e "INSERT INTO PaymentInitiations 
(bankAccount,preparationDate,submissionDate,sum,currency,endToEndId,paymentInformationId,instructionId,subject,creditorIban,creditorBic,creditorName,submitted,messageId,rawConfirmation)
 VALUES 
(1,1,1,10,'TESTKUDOS','NOTGIVEN','unused','unused','CK9QBFY972KR32FVA1MW958JWACEB6XCMHHKVFMCH1A780Q12SVG
 http://exchange.example.com/','"$OTHER_IBAN"','SANDBOXX','Forty 
Two','unused',1,$OLD_ID)" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    echo -e "INSERT INTO PaymentInitiations 
(bankAccount,preparationDate,submissionDate,sum,currency,endToEndId,paymentInformationId,instructionId,subject,creditorIban,creditorBic,creditorName,submitted,messageId,rawConfirmation)
 VALUES 
(1,1,1,10,'TESTKUDOS','NOTGIVEN','unused','unused','CK9QBFY972KR32FVA1MW958JWACEB6XCMHHKVFMCH1A780Q12SVG
 http://exchange.example.com/','""$OTHER_IBAN""','SANDBOXX','Forty 
Two','unused',1,$OLD_ID)" \
+        | psql "${DB}"
     # Now populate the TWG table that accounts for outgoing payments, in
     # order to let /history/outgoing return one result.
-    echo -e "INSERT INTO TalerRequestedPayments 
(facade,payment,requestUid,amount,exchangeBaseUrl,wtid,creditAccount) VALUES 
(1,1,'unused','TESTKUDOS:10','http://exchange.example.com/','CK9QBFY972KR32FVA1MW958JWACEB6XCMHHKVFMCH1A780Q12SVG','payto://iban/SANDBOXX/"$OTHER_IBAN"?receiver-name=Forty+Two')"
 | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    echo -e "INSERT INTO TalerRequestedPayments 
(facade,payment,requestUid,amount,exchangeBaseUrl,wtid,creditAccount) VALUES 
(1,1,'unused','TESTKUDOS:10','http://exchange.example.com/','CK9QBFY972KR32FVA1MW958JWACEB6XCMHHKVFMCH1A780Q12SVG','payto://iban/SANDBOXX/""$OTHER_IBAN""?receiver-name=Forty+Two')"
 \
+        | psql "${DB}"
 
     run_audit
 
     echo -n "Testing inconsistency detection... "
-    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_wired < 
test-audit-wire.json`
-    if test "x$AMOUNT" != "xTESTKUDOS:10"
+    AMOUNT=$(jq -r .wire_out_amount_inconsistencies[0].amount_wired < 
test-audit-wire.json)
+    if [ "x$AMOUNT" != "xTESTKUDOS:10" ]
     then
         exit_fail "Reported wired amount wrong: $AMOUNT"
     fi
-    AMOUNT=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
-    if test "x$AMOUNT" != "xTESTKUDOS:10"
+    AMOUNT=$(jq -r .total_wire_out_delta_plus < test-audit-wire.json)
+    if [ "x$AMOUNT" != "xTESTKUDOS:10" ]
     then
         exit_fail "Reported total plus amount wrong: $AMOUNT"
     fi
-    AMOUNT=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
-    if test "x$AMOUNT" != "xTESTKUDOS:0"
+    AMOUNT=$(jq -r .total_wire_out_delta_minus < test-audit-wire.json)
+    if [ "x$AMOUNT" != "xTESTKUDOS:0" ]
     then
         exit_fail "Reported total minus amount wrong: $AMOUNT"
     fi
-    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_justified < 
test-audit-wire.json`
-    if test "x$AMOUNT" != "xTESTKUDOS:0"
+    AMOUNT=$(jq -r .wire_out_amount_inconsistencies[0].amount_justified < 
test-audit-wire.json)
+    if [ "x$AMOUNT" != "xTESTKUDOS:0" ]
     then
         exit_fail "Reported justified amount wrong: $AMOUNT"
     fi
-    DIAG=`jq -r .wire_out_amount_inconsistencies[0].diagnostic < 
test-audit-wire.json`
-    if test "x$DIAG" != "xjustification for wire transfer not found"
+    DIAG=$(jq -r .wire_out_amount_inconsistencies[0].diagnostic < 
test-audit-wire.json)
+    if [ "x$DIAG" != "xjustification for wire transfer not found" ]
     then
         exit_fail "Reported diagnostic wrong: $DIAG"
     fi
-    echo PASS
+    echo "PASS"
 
     # Undo database modification
-    echo -e "UPDATE NexusBankTransactions SET transactionJson='"$OLD_TX"' 
WHERE id=$OLD_ID;" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    echo -e "UPDATE NexusBankTransactions SET transactionJson='$OLD_TX' WHERE 
id=$OLD_ID;" \
+        | psql "${DB}"
     # No other prepared payment should exist at this point,
     # so OK to remove the number 1.
-    echo -e "DELETE FROM PaymentInitiations WHERE id=1" | sqlite3 
${MYDIR}/${DB}-nexus.sqlite3
-    echo -e "DELETE FROM TalerRequestedPayments WHERE id=1" | sqlite3 
${MYDIR}/${DB}-nexus.sqlite3
+    echo -e "DELETE FROM PaymentInitiations WHERE id=1" \
+        | psql "${DB}"
+    echo -e "DELETE FROM TalerRequestedPayments WHERE id=1" \
+        | psql "${DB}"
 }
 
 # Test for hanging/pending refresh.
 function test_12() {
 
     echo "===========12: incomplete refresh ==========="
-    OLD_ACC=`echo "DELETE FROM exchange.refresh_revealed_coins;" | psql $DB 
-Aqt`
+    OLD_ACC=$(echo "DELETE FROM exchange.refresh_revealed_coins;" | psql "$DB" 
-Aqt)
 
     run_audit
 
     echo -n "Testing hung refresh detection... "
 
-    HANG=`jq -er .refresh_hanging[0].amount < test-audit-coins.json`
-    TOTAL_HANG=`jq -er .total_refresh_hanging < test-audit-coins.json`
-    if test x$HANG = TESTKUDOS:0
+    HANG=$(jq -er .refresh_hanging[0].amount < test-audit-coins.json)
+    TOTAL_HANG=$(jq -er .total_refresh_hanging < test-audit-coins.json)
+    if [ "$HANG" = "TESTKUDOS:0" ]
     then
         exit_fail "Hanging amount zero"
     fi
-    if test x$TOTAL_HANG = TESTKUDOS:0
+    if [ "$TOTAL_HANG" = "TESTKUDOS:0" ]
     then
         exit_fail "Total hanging amount zero"
     fi
-
-    echo PASS
-
+    echo "PASS"
 
     # cannot easily undo DELETE, hence full reload
     full_reload
-
 }
 
 
@@ -1076,23 +1272,23 @@ function test_13() {
 
     echo "===========13: wrong melt signature ==========="
     # Modify denom_sig, so it is wrong
-    COIN_PUB=`echo "SELECT old_coin_pub FROM exchange.refresh_commitments 
LIMIT 1;"  | psql $DB -Aqt`
-    OLD_SIG=`echo "SELECT old_coin_sig FROM exchange.refresh_commitments WHERE 
old_coin_pub='$COIN_PUB';" | psql $DB -Aqt`
+    COIN_PUB=$(echo "SELECT old_coin_pub FROM exchange.refresh_commitments 
LIMIT 1;"  | psql "$DB" -Aqt)
+    OLD_SIG=$(echo "SELECT old_coin_sig FROM exchange.refresh_commitments 
WHERE old_coin_pub='$COIN_PUB';" | psql "$DB" -Aqt)
     
NEW_SIG="\xba588af7c13c477dca1ac458f65cc484db8fba53b969b873f4353ecbd815e6b4c03f42c0cb63a2b609c2d726e612fd8e0c084906a41f409b6a23a08a83c89a02"
-    echo "UPDATE exchange.refresh_commitments SET old_coin_sig='$NEW_SIG' 
WHERE old_coin_pub='$COIN_PUB'" | psql -Aqt $DB
+    echo "UPDATE exchange.refresh_commitments SET old_coin_sig='$NEW_SIG' 
WHERE old_coin_pub='$COIN_PUB'" | psql -Aqt "$DB"
 
     run_audit
 
     echo -n "Testing inconsistency detection... "
 
-    OP=`jq -er .bad_sig_losses[0].operation < test-audit-coins.json`
+    OP=$(jq -er .bad_sig_losses[0].operation < test-audit-coins.json)
     if test x$OP != xmelt
     then
         exit_fail "Operation wrong, got $OP"
     fi
 
-    LOSS=`jq -er .bad_sig_losses[0].loss < test-audit-coins.json`
-    TOTAL_LOSS=`jq -er .irregular_loss < test-audit-coins.json`
+    LOSS=$(jq -er .bad_sig_losses[0].loss < test-audit-coins.json)
+    TOTAL_LOSS=$(jq -er .irregular_loss < test-audit-coins.json)
     if test x$LOSS != x$TOTAL_LOSS
     then
         exit_fail "Loss inconsistent, got $LOSS and $TOTAL_LOSS"
@@ -1118,17 +1314,17 @@ function test_14() {
     # actual outgoing wire transfers, so we need to run the
     # aggregator here.
     pre_audit aggregator
-    echo "UPDATE exchange.wire_fee SET wire_fee_frac=100;" | psql -Aqt $DB
+    echo "UPDATE exchange.wire_fee SET wire_fee_frac=100;" | psql -Aqt "$DB"
     audit_only
     post_audit
 
     echo -n "Testing inconsistency detection... "
-    TABLE=`jq -r .row_inconsistencies[0].table < test-audit-aggregation.json`
+    TABLE=$(jq -r .row_inconsistencies[0].table < test-audit-aggregation.json)
     if test "x$TABLE" != "xwire-fee"
     then
         exit_fail "Reported table wrong: $TABLE"
     fi
-    DIAG=`jq -r .row_inconsistencies[0].diagnostic < 
test-audit-aggregation.json`
+    DIAG=$(jq -r .row_inconsistencies[0].diagnostic < 
test-audit-aggregation.json)
     if test "x$DIAG" != "xwire fee signature invalid at given time"
     then
         exit_fail "Reported diagnostic wrong: $DIAG"
@@ -1145,13 +1341,15 @@ function test_15() {
     echo "===========15: deposit wire salt wrong================="
 
     # Modify wire_salt hash, so it is inconsistent
-    SALT=`echo "SELECT wire_salt FROM exchange.deposits WHERE 
deposit_serial_id=1;" | psql -Aqt $DB`
-    echo "UPDATE exchange.deposits SET 
wire_salt='\x1197cd7f7b0e13ab1905fedb36c536a2' WHERE deposit_serial_id=1;" | 
psql -Aqt $DB
+    SALT=$(echo "SELECT wire_salt FROM exchange.deposits WHERE 
deposit_serial_id=1;" | psql -Aqt "$DB")
+# shellcheck disable=SC2028
+    echo "UPDATE exchange.deposits SET 
wire_salt='\x1197cd7f7b0e13ab1905fedb36c536a2' WHERE deposit_serial_id=1;" \
+        | psql -Aqt "$DB"
 
     run_audit
 
     echo -n "Testing inconsistency detection... "
-    OP=`jq -r .bad_sig_losses[0].operation < test-audit-coins.json`
+    OP=$(jq -r .bad_sig_losses[0].operation < test-audit-coins.json)
     if test "x$OP" != "xdeposit"
     then
         exit_fail "Reported operation wrong: $OP"
@@ -1159,7 +1357,7 @@ function test_15() {
     echo PASS
 
     # Restore DB
-    echo "UPDATE exchange.deposits SET wire_salt='$SALT' WHERE 
deposit_serial_id=1;" | psql -Aqt $DB
+    echo "UPDATE exchange.deposits SET wire_salt='$SALT' WHERE 
deposit_serial_id=1;" | psql -Aqt "$DB"
 
 }
 
@@ -1175,30 +1373,30 @@ function test_16() {
     pre_audit aggregator
 
     stop_libeufin
-    OLD_AMOUNT=`echo "SELECT amount FROM TalerRequestedPayments WHERE id='1';" 
| sqlite3 ${MYDIR}/${DB}-nexus.sqlite3`
+    OLD_AMOUNT=$(echo "SELECT amount FROM TalerRequestedPayments WHERE 
id='1';" | psql "${DB}")
     NEW_AMOUNT="TESTKUDOS:50"
-    echo "UPDATE TalerRequestedPayments SET amount='${NEW_AMOUNT}' WHERE 
id='1';" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    echo "UPDATE TalerRequestedPayments SET amount='${NEW_AMOUNT}' WHERE 
id='1';" | psql "${DB}"
     launch_libeufin
     audit_only
 
     echo -n "Testing inconsistency detection... "
 
-    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_justified < 
test-audit-wire.json`
+    AMOUNT=$(jq -r .wire_out_amount_inconsistencies[0].amount_justified < 
test-audit-wire.json)
     if test "x$AMOUNT" != "x$OLD_AMOUNT"
     then
         exit_fail "Reported justified amount wrong: $AMOUNT"
     fi
-    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_wired < 
test-audit-wire.json`
+    AMOUNT=$(jq -r .wire_out_amount_inconsistencies[0].amount_wired < 
test-audit-wire.json)
     if test "x$AMOUNT" != "x$NEW_AMOUNT"
     then
         exit_fail "Reported wired amount wrong: $AMOUNT"
     fi
-    TOTAL_AMOUNT=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
+    TOTAL_AMOUNT=$(jq -r .total_wire_out_delta_minus < test-audit-wire.json)
     if test "x$TOTAL_AMOUNT" != "xTESTKUDOS:0"
     then
         exit_fail "Reported total wired amount minus wrong: $TOTAL_AMOUNT"
     fi
-    TOTAL_AMOUNT=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
+    TOTAL_AMOUNT=$(jq -r .total_wire_out_delta_plus < test-audit-wire.json)
     if test "x$TOTAL_AMOUNT" = "xTESTKUDOS:0"
     then
         exit_fail "Reported total wired amount plus wrong: $TOTAL_AMOUNT"
@@ -1208,28 +1406,28 @@ function test_16() {
     stop_libeufin
     echo "Second modification: wire nothing"
     NEW_AMOUNT="TESTKUDOS:0"
-    echo "UPDATE TalerRequestedPayments SET amount='${NEW_AMOUNT}' WHERE 
id='1';" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    echo "UPDATE TalerRequestedPayments SET amount='${NEW_AMOUNT}' WHERE 
id='1';" | psql "${DB}"
     launch_libeufin
     audit_only
     stop_libeufin
     echo -n "Testing inconsistency detection... "
 
-    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_justified < 
test-audit-wire.json`
+    AMOUNT=$(jq -r .wire_out_amount_inconsistencies[0].amount_justified < 
test-audit-wire.json)
     if test "x$AMOUNT" != "x$OLD_AMOUNT"
     then
         exit_fail "Reported justified amount wrong: $AMOUNT"
     fi
-    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_wired < 
test-audit-wire.json`
+    AMOUNT=$(jq -r .wire_out_amount_inconsistencies[0].amount_wired < 
test-audit-wire.json)
     if test "x$AMOUNT" != "x$NEW_AMOUNT"
     then
         exit_fail "Reported wired amount wrong: $AMOUNT"
     fi
-    TOTAL_AMOUNT=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
+    TOTAL_AMOUNT=$(jq -r .total_wire_out_delta_minus < test-audit-wire.json)
     if test "x$TOTAL_AMOUNT" != "x$OLD_AMOUNT"
     then
         exit_fail "Reported total wired amount minus wrong: $TOTAL_AMOUNT 
(wanted $OLD_AMOUNT)"
     fi
-    TOTAL_AMOUNT=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
+    TOTAL_AMOUNT=$(jq -r .total_wire_out_delta_plus < test-audit-wire.json)
     if test "x$TOTAL_AMOUNT" != "xTESTKUDOS:0"
     then
         exit_fail "Reported total wired amount plus wrong: $TOTAL_AMOUNT"
@@ -1253,25 +1451,26 @@ function test_17() {
     pre_audit aggregator
     stop_libeufin
     OLD_ID=1
-    OLD_PREP=`echo "SELECT payment FROM TalerRequestedPayments WHERE 
id='${OLD_ID}';" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3`
-    OLD_DATE=`echo "SELECT preparationDate FROM PaymentInitiations WHERE 
id='${OLD_ID}';" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3`
+    OLD_PREP=$(echo "SELECT payment FROM TalerRequestedPayments WHERE 
id='${OLD_ID}';" | psql "${DB}")
+    OLD_DATE=$(echo "SELECT preparationDate FROM PaymentInitiations WHERE 
id='${OLD_ID}';" | psql "${DB}")
     # Note: need - interval '1h' as "NOW()" may otherwise be exactly what is 
already in the DB
     # (due to rounding, if this machine is fast...)
     NOW_1HR=$(expr $(date +%s) - 3600)
-    echo "UPDATE PaymentInitiations SET preparationDate='$NOW_1HR' WHERE 
id='${OLD_PREP}';" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    echo "UPDATE PaymentInitiations SET preparationDate='$NOW_1HR' WHERE 
id='${OLD_PREP}';" \
+        | psql "${DB}"
     launch_libeufin
     echo DONE
     audit_only
     post_audit
 
     echo -n "Testing inconsistency detection... "
-    TABLE=`jq -r .row_minor_inconsistencies[0].table < test-audit-wire.json`
+    TABLE=$(jq -r .row_minor_inconsistencies[0].table < test-audit-wire.json)
     if test "x$TABLE" != "xwire_out"
     then
         exit_fail "Reported table wrong: $TABLE"
     fi
-    DIAG=`jq -r .row_minor_inconsistencies[0].diagnostic < 
test-audit-wire.json`
-    DIAG=`echo "$DIAG" | awk '{print $1 " " $2 " " $3}'`
+    DIAG=$(jq -r .row_minor_inconsistencies[0].diagnostic < 
test-audit-wire.json)
+    DIAG=$(echo "$DIAG" | awk '{print $1 " " $2 " " $3}')
     if test "x$DIAG" != "xexecution date mismatch"
     then
         exit_fail "Reported diagnostic wrong: $DIAG"
@@ -1289,7 +1488,7 @@ function test_17() {
 function test_18() {
     echo "===========18: emergency================="
 
-    echo "DELETE FROM exchange.reserves_out;" | psql -Aqt $DB
+    echo "DELETE FROM exchange.reserves_out;" | psql -Aqt "$DB"
 
     run_audit
 
@@ -1305,12 +1504,12 @@ function test_18() {
 
     echo -n "Testing loss calculation... "
 
-    AMOUNT=`jq -r .emergencies_loss < test-audit-coins.json`
+    AMOUNT=$(jq -r .emergencies_loss < test-audit-coins.json)
     if test "x$AMOUNT" == "xTESTKUDOS:0"
     then
         exit_fail "Reported amount wrong: $AMOUNT"
     fi
-    AMOUNT=`jq -r .emergencies_loss_by_count < test-audit-coins.json`
+    AMOUNT=$(jq -r .emergencies_loss_by_count < test-audit-coins.json)
     if test "x$AMOUNT" == "xTESTKUDOS:0"
     then
         exit_fail "Reported amount wrong: $AMOUNT"
@@ -1328,16 +1527,16 @@ function test_18() {
 function test_19() {
     echo "===========19: reserve closure done properly ================="
 
-    OLD_TIME=`echo "SELECT execution_date FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql $DB -Aqt`
-    OLD_VAL=`echo "SELECT credit_val FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql $DB -Aqt`
-    RES_PUB=`echo "SELECT reserve_pub FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql $DB -Aqt`
-    OLD_EXP=`echo "SELECT expiration_date FROM exchange.reserves WHERE 
reserve_pub='${RES_PUB}';" | psql $DB -Aqt`
+    OLD_TIME=$(echo "SELECT execution_date FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql "$DB" -Aqt)
+    OLD_VAL=$(echo "SELECT credit_val FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql "$DB" -Aqt)
+    RES_PUB=$(echo "SELECT reserve_pub FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql "$DB" -Aqt)
+    OLD_EXP=$(echo "SELECT expiration_date FROM exchange.reserves WHERE 
reserve_pub='${RES_PUB}';" | psql "$DB" -Aqt)
     VAL_DELTA=1
-    NEW_TIME=`expr $OLD_TIME - 3024000000000 || true`  # 5 weeks
-    NEW_EXP=`expr $OLD_EXP - 3024000000000 || true`  # 5 weeks
-    NEW_CREDIT=`expr $OLD_VAL + $VAL_DELTA || true`
-    echo "UPDATE exchange.reserves_in SET 
execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE 
reserve_in_serial_id=1;" | psql -Aqt $DB
-    echo "UPDATE exchange.reserves SET 
current_balance_val=${VAL_DELTA}+current_balance_val,expiration_date='${NEW_EXP}'
 WHERE reserve_pub='${RES_PUB}';" | psql -Aqt $DB
+    NEW_TIME=$(expr $OLD_TIME - 3024000000000 || true)  # 5 weeks
+    NEW_EXP=$(expr $OLD_EXP - 3024000000000 || true)  # 5 weeks
+    NEW_CREDIT=$(expr $OLD_VAL + $VAL_DELTA || true)
+    echo "UPDATE exchange.reserves_in SET 
execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE 
reserve_in_serial_id=1;" | psql -Aqt "$DB"
+    echo "UPDATE exchange.reserves SET 
current_balance_val=${VAL_DELTA}+current_balance_val,expiration_date='${NEW_EXP}'
 WHERE reserve_pub='${RES_PUB}';" | psql -Aqt "$DB"
 
     # Need to run with the aggregator so the reserve closure happens
     run_audit aggregator
@@ -1362,13 +1561,13 @@ function test_19() {
 function test_20() {
     echo "===========20: reserve closure missing ================="
 
-    OLD_TIME=`echo "SELECT execution_date FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql $DB -Aqt`
-    OLD_VAL=`echo "SELECT credit_val FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql $DB -Aqt`
-    RES_PUB=`echo "SELECT reserve_pub FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql $DB -Aqt`
-    NEW_TIME=`expr $OLD_TIME - 3024000000000 || true`  # 5 weeks
-    NEW_CREDIT=`expr $OLD_VAL + 100 || true`
-    echo "UPDATE exchange.reserves_in SET 
execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE 
reserve_in_serial_id=1;" | psql -Aqt $DB
-    echo "UPDATE exchange.reserves SET 
current_balance_val=100+current_balance_val WHERE reserve_pub='${RES_PUB}';" | 
psql -Aqt $DB
+    OLD_TIME=$(echo "SELECT execution_date FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql "$DB" -Aqt)
+    OLD_VAL=$(echo "SELECT credit_val FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql "$DB" -Aqt)
+    RES_PUB=$(echo "SELECT reserve_pub FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql "$DB" -Aqt)
+    NEW_TIME=$(expr $OLD_TIME - 3024000000000 || true)  # 5 weeks
+    NEW_CREDIT=$(expr $OLD_VAL + 100 || true)
+    echo "UPDATE exchange.reserves_in SET 
execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE 
reserve_in_serial_id=1;" | psql -Aqt "$DB"
+    echo "UPDATE exchange.reserves SET 
current_balance_val=100+current_balance_val WHERE reserve_pub='${RES_PUB}';" | 
psql -Aqt "$DB"
 
     # This time, run without the aggregator so the reserve closure is skipped!
     run_audit
@@ -1377,15 +1576,15 @@ function test_20() {
     jq -e .reserve_not_closed_inconsistencies[0] < test-audit-reserves.json > 
/dev/null || exit_fail "Reserve not closed inconsistency not detected"
     echo "PASS"
 
-    AMOUNT=`jq -r .total_balance_reserve_not_closed < test-audit-reserves.json`
+    AMOUNT=$(jq -r .total_balance_reserve_not_closed < 
test-audit-reserves.json)
     if test "x$AMOUNT" == "xTESTKUDOS:0"
     then
         exit_fail "Reported total amount wrong: $AMOUNT"
     fi
 
     # Undo
-    echo "UPDATE exchange.reserves_in SET 
execution_date='${OLD_TIME}',credit_val=${OLD_VAL} WHERE 
reserve_in_serial_id=1;" | psql -Aqt $DB
-    echo "UPDATE exchange.reserves SET 
current_balance_val=current_balance_val-100 WHERE reserve_pub='${RES_PUB}';" | 
psql -Aqt $DB
+    echo "UPDATE exchange.reserves_in SET 
execution_date='${OLD_TIME}',credit_val=${OLD_VAL} WHERE 
reserve_in_serial_id=1;" | psql -Aqt "$DB"
+    echo "UPDATE exchange.reserves SET 
current_balance_val=current_balance_val-100 WHERE reserve_pub='${RES_PUB}';" | 
psql -Aqt "$DB"
 
 }
 
@@ -1394,23 +1593,23 @@ function test_20() {
 function test_21() {
     echo "===========21: reserve closure missreported ================="
 
-    OLD_TIME=`echo "SELECT execution_date FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql $DB -Aqt`
-    OLD_VAL=`echo "SELECT credit_val FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql $DB -Aqt`
-    RES_PUB=`echo "SELECT reserve_pub FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql $DB -Aqt`
-    OLD_EXP=`echo "SELECT expiration_date FROM exchange.reserves WHERE 
reserve_pub='${RES_PUB}';" | psql $DB -Aqt`
+    OLD_TIME=$(echo "SELECT execution_date FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql "$DB" -Aqt)
+    OLD_VAL=$(echo "SELECT credit_val FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql "$DB" -Aqt)
+    RES_PUB=$(echo "SELECT reserve_pub FROM exchange.reserves_in WHERE 
reserve_in_serial_id=1;" | psql "$DB" -Aqt)
+    OLD_EXP=$(echo "SELECT expiration_date FROM exchange.reserves WHERE 
reserve_pub='${RES_PUB}';" | psql "$DB" -Aqt)
     VAL_DELTA=1
-    NEW_TIME=`expr $OLD_TIME - 3024000000000 || true`  # 5 weeks
-    NEW_EXP=`expr $OLD_EXP - 3024000000000 || true`  # 5 weeks
-    NEW_CREDIT=`expr $OLD_VAL + $VAL_DELTA || true`
-    echo "UPDATE exchange.reserves_in SET 
execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE 
reserve_in_serial_id=1;" | psql -Aqt $DB
-    echo "UPDATE exchange.reserves SET 
current_balance_val=${VAL_DELTA}+current_balance_val,expiration_date='${NEW_EXP}'
 WHERE reserve_pub='${RES_PUB}';" | psql -Aqt $DB
+    NEW_TIME=$(expr $OLD_TIME - 3024000000000 || true)  # 5 weeks
+    NEW_EXP=$(expr $OLD_EXP - 3024000000000 || true)  # 5 weeks
+    NEW_CREDIT=$(expr $OLD_VAL + $VAL_DELTA || true)
+    echo "UPDATE exchange.reserves_in SET 
execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE 
reserve_in_serial_id=1;" | psql -Aqt "$DB"
+    echo "UPDATE exchange.reserves SET 
current_balance_val=${VAL_DELTA}+current_balance_val,expiration_date='${NEW_EXP}'
 WHERE reserve_pub='${RES_PUB}';" | psql -Aqt "$DB"
 
     # Need to first run the aggregator so the transfer is marked as done exists
     pre_audit aggregator
     stop_libeufin
     # remove transaction from bank DB
     # Currently emulating this (to be deleted):
-    echo "DELETE FROM TalerRequestedPayments WHERE 
amount='TESTKUDOS:${VAL_DELTA}'" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    echo "DELETE FROM TalerRequestedPayments WHERE 
amount='TESTKUDOS:${VAL_DELTA}'" | psql "${DB}"
     launch_libeufin
     audit_only
     post_audit
@@ -1419,12 +1618,12 @@ function test_21() {
 
     jq -e .reserve_lag_details[0] < test-audit-wire.json > /dev/null || 
exit_fail "Reserve closure lag not detected"
 
-    AMOUNT=`jq -r .reserve_lag_details[0].amount < test-audit-wire.json`
+    AMOUNT=$(jq -r .reserve_lag_details[0].amount < test-audit-wire.json)
     if test "x$AMOUNT" != "xTESTKUDOS:${VAL_DELTA}"
     then
         exit_fail "Reported total amount wrong: $AMOUNT"
     fi
-    AMOUNT=`jq -r .total_closure_amount_lag < test-audit-wire.json`
+    AMOUNT=$(jq -r .total_closure_amount_lag < test-audit-wire.json)
     if test "x$AMOUNT" != "xTESTKUDOS:${VAL_DELTA}"
     then
         exit_fail "Reported total amount wrong: $AMOUNT"
@@ -1441,14 +1640,14 @@ function test_21() {
 function test_22() {
     echo "===========22: denomination key expired ================="
 
-    S_DENOM=`echo 'SELECT denominations_serial FROM exchange.reserves_out 
LIMIT 1;' | psql $DB -Aqt`
+    S_DENOM=$(echo 'SELECT denominations_serial FROM exchange.reserves_out 
LIMIT 1;' | psql "$DB" -Aqt)
 
-    OLD_START=`echo "SELECT valid_from FROM exchange.denominations WHERE 
denominations_serial='${S_DENOM}';" | psql $DB -Aqt`
-    OLD_WEXP=`echo "SELECT expire_withdraw FROM exchange.denominations WHERE 
denominations_serial='${S_DENOM}';" | psql $DB -Aqt`
+    OLD_START=$(echo "SELECT valid_from FROM exchange.denominations WHERE 
denominations_serial='${S_DENOM}';" | psql "$DB" -Aqt)
+    OLD_WEXP=$(echo "SELECT expire_withdraw FROM exchange.denominations WHERE 
denominations_serial='${S_DENOM}';" | psql "$DB" -Aqt)
     # Basically expires 'immediately', so that the withdraw must have been 
'invalid'
     NEW_WEXP=$OLD_START
 
-    echo "UPDATE exchange.denominations SET expire_withdraw=${NEW_WEXP} WHERE 
denominations_serial='${S_DENOM}';" | psql -Aqt $DB
+    echo "UPDATE exchange.denominations SET expire_withdraw=${NEW_WEXP} WHERE 
denominations_serial='${S_DENOM}';" | psql -Aqt "$DB"
 
 
     run_audit
@@ -1459,7 +1658,7 @@ function test_22() {
     echo PASS
 
     # Undo modification
-    echo "UPDATE exchange.denominations SET expire_withdraw=${OLD_WEXP} WHERE 
denominations_serial='${S_DENOM}';" | psql -Aqt $DB
+    echo "UPDATE exchange.denominations SET expire_withdraw=${OLD_WEXP} WHERE 
denominations_serial='${S_DENOM}';" | psql -Aqt "$DB"
 
 }
 
@@ -1472,9 +1671,9 @@ function test_23() {
     # Need to first run the aggregator so the transfer is marked as done exists
     pre_audit aggregator
 
-    OLD_AMOUNT=`echo "SELECT amount_frac FROM exchange.wire_out WHERE 
wireout_uuid=1;" | psql $DB -Aqt`
-    NEW_AMOUNT=`expr $OLD_AMOUNT - 1000000 || true`
-    echo "UPDATE exchange.wire_out SET amount_frac=${NEW_AMOUNT} WHERE 
wireout_uuid=1;" | psql -Aqt $DB
+    OLD_AMOUNT=$(echo "SELECT amount_frac FROM exchange.wire_out WHERE 
wireout_uuid=1;" | psql "$DB" -Aqt)
+    NEW_AMOUNT=$(expr $OLD_AMOUNT - 1000000 || true)
+    echo "UPDATE exchange.wire_out SET amount_frac=${NEW_AMOUNT} WHERE 
wireout_uuid=1;" | psql -Aqt "$DB"
 
     audit_only
     post_audit
@@ -1483,17 +1682,17 @@ function test_23() {
 
     jq -e .wire_out_inconsistencies[0] < test-audit-aggregation.json > 
/dev/null || exit_fail "Wire out inconsistency not detected"
 
-    ROW=`jq .wire_out_inconsistencies[0].rowid < test-audit-aggregation.json`
-    if test $ROW != 1
+    ROW=$(jq .wire_out_inconsistencies[0].rowid < test-audit-aggregation.json)
+    if [ "$ROW" != 1 ]
     then
         exit_fail "Row wrong"
     fi
-    AMOUNT=`jq -r .total_wire_out_delta_plus < test-audit-aggregation.json`
+    AMOUNT=$(jq -r .total_wire_out_delta_plus < test-audit-aggregation.json)
     if test "x$AMOUNT" != "xTESTKUDOS:0"
     then
         exit_fail "Reported amount wrong: $AMOUNT"
     fi
-    AMOUNT=`jq -r .total_wire_out_delta_minus < test-audit-aggregation.json`
+    AMOUNT=$(jq -r .total_wire_out_delta_minus < test-audit-aggregation.json)
     if test "x$AMOUNT" != "xTESTKUDOS:0.01"
     then
         exit_fail "Reported total amount wrong: $AMOUNT"
@@ -1501,8 +1700,8 @@ function test_23() {
     echo PASS
 
     echo "Second pass: changing how amount is wrong to other direction"
-    NEW_AMOUNT=`expr $OLD_AMOUNT + 1000000 || true`
-    echo "UPDATE exchange.wire_out SET amount_frac=${NEW_AMOUNT} WHERE 
wireout_uuid=1;" | psql -Aqt $DB
+    NEW_AMOUNT=$(expr $OLD_AMOUNT + 1000000 || true)
+    echo "UPDATE exchange.wire_out SET amount_frac=${NEW_AMOUNT} WHERE 
wireout_uuid=1;" | psql -Aqt "$DB"
 
     pre_audit
     audit_only
@@ -1512,17 +1711,17 @@ function test_23() {
 
     jq -e .wire_out_inconsistencies[0] < test-audit-aggregation.json > 
/dev/null || exit_fail "Wire out inconsistency not detected"
 
-    ROW=`jq .wire_out_inconsistencies[0].rowid < test-audit-aggregation.json`
-    if test $ROW != 1
+    ROW=$(jq .wire_out_inconsistencies[0].rowid < test-audit-aggregation.json)
+    if [ "$ROW" != 1 ]
     then
         exit_fail "Row wrong"
     fi
-    AMOUNT=`jq -r .total_wire_out_delta_minus < test-audit-aggregation.json`
+    AMOUNT=$(jq -r .total_wire_out_delta_minus < test-audit-aggregation.json)
     if test "x$AMOUNT" != "xTESTKUDOS:0"
     then
         exit_fail "Reported amount wrong: $AMOUNT"
     fi
-    AMOUNT=`jq -r .total_wire_out_delta_plus < test-audit-aggregation.json`
+    AMOUNT=$(jq -r .total_wire_out_delta_plus < test-audit-aggregation.json)
     if test "x$AMOUNT" != "xTESTKUDOS:0.01"
     then
         exit_fail "Reported total amount wrong: $AMOUNT"
@@ -1540,13 +1739,13 @@ function test_24() {
 
     echo "===========24: deposits missing ==========="
     # Modify denom_sig, so it is wrong
-    CNT=`echo "SELECT COUNT(*) FROM auditor.deposit_confirmations;" | psql 
-Aqt $DB`
+    CNT=$(echo "SELECT COUNT(*) FROM auditor.deposit_confirmations;" | psql 
-Aqt "$DB")
     if test x$CNT = x0
     then
         echo "Skipping deposits missing test: no deposit confirmations in 
database!"
     else
-        echo "DELETE FROM exchange.deposits;" | psql -Aqt $DB
-        echo "DELETE FROM exchange.deposits WHERE deposit_serial_id=1;" | psql 
-Aqt $DB
+        echo "DELETE FROM exchange.deposits;" | psql -Aqt "$DB"
+        echo "DELETE FROM exchange.deposits WHERE deposit_serial_id=1;" | psql 
-Aqt "$DB"
 
         run_audit
 
@@ -1554,12 +1753,12 @@ function test_24() {
 
         jq -e .deposit_confirmation_inconsistencies[0] < 
test-audit-deposits.json > /dev/null || exit_fail "Deposit confirmation 
inconsistency NOT detected"
 
-        AMOUNT=`jq -er .missing_deposit_confirmation_total < 
test-audit-deposits.json`
+        AMOUNT=$(jq -er .missing_deposit_confirmation_total < 
test-audit-deposits.json)
         if test x$AMOUNT = xTESTKUDOS:0
         then
             exit_fail "Expected non-zero total missing deposit confirmation 
amount"
         fi
-        COUNT=`jq -er .missing_deposit_confirmation_count < 
test-audit-deposits.json`
+        COUNT=$(jq -er .missing_deposit_confirmation_count < 
test-audit-deposits.json)
         if test x$AMOUNT = x0
         then
             exit_fail "Expected non-zero total missing deposit confirmation 
count"
@@ -1579,7 +1778,7 @@ function test_25() {
     echo "=========25: inconsistent coin history========="
 
     # Drop refund, so coin history is bogus.
-    echo "DELETE FROM exchange.refunds WHERE refund_serial_id=1;" | psql -Aqt 
$DB
+    echo "DELETE FROM exchange.refunds WHERE refund_serial_id=1;" | psql -Aqt 
"$DB"
 
     run_audit aggregator
 
@@ -1591,14 +1790,14 @@ function test_25() {
     # go legitimately unnoticed.
     jq -e .emergencies[0] < test-audit-coins.json > /dev/null || exit_fail 
"Denomination value emergency NOT reported"
 
-    AMOUNT=`jq -er .total_coin_delta_minus < test-audit-aggregation.json`
+    AMOUNT=$(jq -er .total_coin_delta_minus < test-audit-aggregation.json)
     if test x$AMOUNT = xTESTKUDOS:0
     then
         exit_fail "Expected non-zero total inconsistency amount from coins"
     fi
     # Note: if the wallet withdrew much more than it spent, this might indeed
     # go legitimately unnoticed.
-    COUNT=`jq -er .emergencies_risk_by_amount < test-audit-coins.json`
+    COUNT=$(jq -er .emergencies_risk_by_amount < test-audit-coins.json)
     if test x$AMOUNT = xTESTKUDOS:0
     then
         exit_fail "Expected non-zero emergency-by-amount"
@@ -1614,10 +1813,14 @@ function test_25() {
 function test_26() {
     echo "===========26: deposit wire target malformed ================="
     # Expects 'payto_uri', not 'url' (also breaks signature, but we cannot 
even check that).
-    SERIAL=`echo "SELECT deposit_serial_id FROM exchange.deposits WHERE 
amount_with_fee_val=3 AND amount_with_fee_frac=0 ORDER BY deposit_serial_id 
LIMIT 1" | psql $DB -Aqt`
-    OLD_WIRE_ID=`echo "SELECT wire_target_h_payto FROM exchange.deposits WHERE 
deposit_serial_id=${SERIAL};"  | psql $DB -Aqt`
-    echo "INSERT INTO exchange.wire_targets (payto_uri, wire_target_h_payto) 
VALUES ('payto://x-taler-bank/localhost/testuser-xxlargtp', 
'\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b');"  | psql 
$DB -Aqt
-    echo "UPDATE exchange.deposits SET 
wire_target_h_payto='\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b'
 WHERE deposit_serial_id=${SERIAL}" | psql -Aqt $DB
+    SERIAL=$(echo "SELECT deposit_serial_id FROM exchange.deposits WHERE 
amount_with_fee_val=3 AND amount_with_fee_frac=0 ORDER BY deposit_serial_id 
LIMIT 1" | psql "$DB" -Aqt)
+    OLD_WIRE_ID=$(echo "SELECT wire_target_h_payto FROM exchange.deposits 
WHERE deposit_serial_id=${SERIAL};"  | psql "$DB" -Aqt)
+# shellcheck disable=SC2028
+    echo "INSERT INTO exchange.wire_targets (payto_uri, wire_target_h_payto) 
VALUES ('payto://x-taler-bank/localhost/testuser-xxlargtp', 
'\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b');" \
+        | psql "$DB" -Aqt
+# shellcheck disable=SC2028
+    echo "UPDATE exchange.deposits SET 
wire_target_h_payto='\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b'
 WHERE deposit_serial_id=${SERIAL}" \
+        | psql -Aqt "$DB"
 
     run_audit
 
@@ -1625,34 +1828,34 @@ function test_26() {
 
     jq -e .bad_sig_losses[0] < test-audit-coins.json > /dev/null || exit_fail 
"Bad signature not detected"
 
-    ROW=`jq -e .bad_sig_losses[0].row < test-audit-coins.json`
-    if test $ROW != ${SERIAL}
+    ROW=$(jq -e .bad_sig_losses[0].row < test-audit-coins.json)
+    if [ "$ROW" != ${SERIAL} ]
     then
         exit_fail "Row wrong, got $ROW"
     fi
 
-    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:3"
+    LOSS=$(jq -r .bad_sig_losses[0].loss < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:3" ]
     then
         exit_fail "Wrong deposit bad signature loss, got $LOSS"
     fi
 
-    OP=`jq -r .bad_sig_losses[0].operation < test-audit-coins.json`
-    if test $OP != "deposit"
+    OP=$(jq -r .bad_sig_losses[0].operation < test-audit-coins.json)
+    if [ "$OP" != "deposit" ]
     then
         exit_fail "Wrong operation, got $OP"
     fi
 
-    LOSS=`jq -r .irregular_loss < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:3"
+    LOSS=$(jq -r .irregular_loss < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:3" ]
     then
         exit_fail "Wrong total bad sig loss, got $LOSS"
     fi
 
-    echo PASS
+    echo "PASS"
     # Undo:
-    echo "UPDATE exchange.deposits SET wire_target_h_payto='$OLD_WIRE_ID' 
WHERE deposit_serial_id=${SERIAL}" | psql -Aqt $DB
-
+    echo "UPDATE exchange.deposits SET wire_target_h_payto='$OLD_WIRE_ID' 
WHERE deposit_serial_id=${SERIAL}" \
+        | psql -Aqt "$DB"
 }
 
 # Test for duplicate wire transfer subject
@@ -1662,26 +1865,28 @@ function test_27() {
     pre_audit aggregator
     stop_libeufin
     # Obtain data to duplicate.
-    WTID=`echo SELECT wtid FROM TalerRequestedPayments WHERE id=1 | sqlite3 
${MYDIR}/${DB}-nexus.sqlite3`
+    WTID=$(echo SELECT wtid FROM TalerRequestedPayments WHERE id=1 | psql 
"${DB}")
     echo WTID=$WTID
-    OTHER_IBAN=`echo -e "SELECT iban FROM BankAccounts WHERE label='fortytwo'" 
| sqlite3 ${MYDIR}/${DB}-sandbox.sqlite3`
+    OTHER_IBAN=$(echo -e "SELECT iban FROM BankAccounts WHERE 
label='fortytwo'" | psql "${DB}")
     # 'rawConfirmation' is set to 2 here, that doesn't
     # point to any record.  That's only needed to set a non null value.
-    echo -e "INSERT INTO PaymentInitiations 
(bankAccount,preparationDate,submissionDate,sum,currency,endToEndId,paymentInformationId,instructionId,subject,creditorIban,creditorBic,creditorName,submitted,messageId,rawConfirmation)
 VALUES (1,$(date +%s),$(expr $(date +%s) + 
2),10,'TESTKUDOS','NOTGIVEN','unused','unused','$WTID 
http://exchange.example.com/','$OTHER_IBAN','SANDBOXX','Forty 
Two','unused',1,2)" | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
-    echo -e "INSERT INTO TalerRequestedPayments 
(facade,payment,requestUid,amount,exchangeBaseUrl,wtid,creditAccount) VALUES 
(1,2,'unused','TESTKUDOS:1','http://exchange.example.com/','$WTID','payto://iban/SANDBOXX/$OTHER_IBAN?receiver-name=Forty+Two')"
 | sqlite3 ${MYDIR}/${DB}-nexus.sqlite3
+    echo -e "INSERT INTO PaymentInitiations 
(bankAccount,preparationDate,submissionDate,sum,currency,endToEndId,paymentInformationId,instructionId,subject,creditorIban,creditorBic,creditorName,submitted,messageId,rawConfirmation)
 VALUES (1,$(date +%s),$(expr $(date +%s) + 
2),10,'TESTKUDOS','NOTGIVEN','unused','unused','$WTID 
http://exchange.example.com/','$OTHER_IBAN','SANDBOXX','Forty 
Two','unused',1,2)" \
+        | psql "${DB}"
+    echo -e "INSERT INTO TalerRequestedPayments 
(facade,payment,requestUid,amount,exchangeBaseUrl,wtid,creditAccount) VALUES 
(1,2,'unused','TESTKUDOS:1','http://exchange.example.com/','$WTID','payto://iban/SANDBOXX/$OTHER_IBAN?receiver-name=Forty+Two')"
 \
+        | psql "${DB}"
     launch_libeufin
     audit_only
     post_audit
 
     echo -n "Testing inconsistency detection... "
 
-    AMOUNT=`jq -r .wire_format_inconsistencies[0].amount < 
test-audit-wire.json`
+    AMOUNT=$(jq -r .wire_format_inconsistencies[0].amount < 
test-audit-wire.json)
     if test "${AMOUNT}" != "TESTKUDOS:1"
     then
         exit_fail "Amount wrong, got ${AMOUNT}"
     fi
 
-    AMOUNT=`jq -r .total_wire_format_amount < test-audit-wire.json`
+    AMOUNT=$(jq -r .total_wire_format_amount < test-audit-wire.json)
     if test "${AMOUNT}" != "TESTKUDOS:1"
     then
         exit_fail "Wrong total wire format amount, got $AMOUNT"
@@ -1700,32 +1905,34 @@ function test_28() {
 
     echo "===========28: known_coins signature wrong================="
     # Modify denom_sig, so it is wrong
-    OLD_SIG=`echo 'SELECT denom_sig FROM exchange.known_coins LIMIT 1;' | psql 
$DB -Aqt`
-    COIN_PUB=`echo "SELECT coin_pub FROM exchange.known_coins WHERE 
denom_sig='$OLD_SIG';"  | psql $DB -Aqt`
-    echo "UPDATE exchange.known_coins SET 
denom_sig='\x0000000100000000287369672d76616c200a2028727361200a202028732023354238373142374339303644464330344242443045303935324641364246413246353730313937413131343735374632463232333239464444314632464333344539393941333636343033423341313332444446423941383335383346453635444237433543444530444145303537443836333643454142383446384332384334444630414436303034343041303835343536303937383343443133323939373642364243343731304132463241413241443541383330343243434
 [...]
+    OLD_SIG=$(echo 'SELECT denom_sig FROM exchange.known_coins LIMIT 1;' | 
psql "$DB" -Aqt)
+    COIN_PUB=$(echo "SELECT coin_pub FROM exchange.known_coins WHERE 
denom_sig='$OLD_SIG';"  | psql "$DB" -Aqt)
+# shellcheck disable=SC2028
+    echo "UPDATE exchange.known_coins SET 
denom_sig='\x0000000100000000287369672d76616c200a2028727361200a202028732023354238373142374339303644464330344242443045303935324641364246413246353730313937413131343735374632463232333239464444314632464333344539393941333636343033423341313332444446423941383335383346453635444237433543444530444145303537443836333643454142383446384332384334444630414436303034343041303835343536303937383343443133323939373642364243343731304132463241413241443541383330343243434
 [...]
+        | psql -Aqt "$DB"
 
     run_audit aggregator
 
     echo -n "Testing inconsistency detection... "
-    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-aggregation.json`
-    if test $LOSS == "TESTKUDOS:0"
+    LOSS=$(jq -r .bad_sig_losses[0].loss < test-audit-aggregation.json)
+    if [ "$LOSS" == "TESTKUDOS:0" ]
     then
         exit_fail "Wrong deposit bad signature loss, got $LOSS"
     fi
 
-    OP=`jq -r .bad_sig_losses[0].operation < test-audit-aggregation.json`
-    if test $OP != "wire"
+    OP=$(jq -r .bad_sig_losses[0].operation < test-audit-aggregation.json)
+    if [ "$OP" != "wire" ]
     then
         exit_fail "Wrong operation, got $OP"
     fi
-    TAB=`jq -r .row_inconsistencies[0].table < test-audit-aggregation.json`
+    TAB=$(jq -r .row_inconsistencies[0].table < test-audit-aggregation.json)
     if test $TAB != "deposit"
     then
         exit_fail "Wrong table for row inconsistency, got $TAB"
     fi
 
-    LOSS=`jq -r .total_bad_sig_loss < test-audit-aggregation.json`
-    if test $LOSS == "TESTKUDOS:0"
+    LOSS=$(jq -r .total_bad_sig_loss < test-audit-aggregation.json)
+    if [ "$LOSS" == "TESTKUDOS:0" ]
     then
         exit_fail "Wrong total bad sig loss, got $LOSS"
     fi
@@ -1742,25 +1949,25 @@ function test_28() {
 function test_29() {
     echo "===========29: withdraw fee inconsistency ================="
 
-    echo "UPDATE exchange.denominations SET fee_withdraw_frac=5000000 WHERE 
coin_val=1;" | psql -Aqt $DB
+    echo "UPDATE exchange.denominations SET fee_withdraw_frac=5000000 WHERE 
coin_val=1;" | psql -Aqt "$DB"
 
     run_audit
 
     echo -n "Testing inconsistency detection... "
-    AMOUNT=`jq -r .total_balance_summary_delta_minus < 
test-audit-reserves.json`
+    AMOUNT=$(jq -r .total_balance_summary_delta_minus < 
test-audit-reserves.json)
     if test "x$AMOUNT" == "xTESTKUDOS:0"
     then
         exit_fail "Reported total amount wrong: $AMOUNT"
     fi
 
-    PROFIT=`jq -r .amount_arithmetic_inconsistencies[0].profitable < 
test-audit-coins.json`
+    PROFIT=$(jq -r .amount_arithmetic_inconsistencies[0].profitable < 
test-audit-coins.json)
     if test "x$PROFIT" != "x-1"
     then
         exit_fail "Reported wrong profitability: $PROFIT"
     fi
     echo "OK"
     # Undo
-    echo "UPDATE exchange.denominations SET fee_withdraw_frac=2000000 WHERE 
coin_val=1;" | psql -Aqt $DB
+    echo "UPDATE exchange.denominations SET fee_withdraw_frac=2000000 WHERE 
coin_val=1;" | psql -Aqt "$DB"
 
 }
 
@@ -1770,17 +1977,17 @@ function test_29() {
 function test_30() {
     echo "===========30: melt fee inconsistency ================="
 
-    echo "UPDATE exchange.denominations SET fee_refresh_frac=5000000 WHERE 
coin_val=10;" | psql -Aqt $DB
+    echo "UPDATE exchange.denominations SET fee_refresh_frac=5000000 WHERE 
coin_val=10;" | psql -Aqt "$DB"
 
     run_audit
     echo -n "Testing inconsistency detection... "
-    AMOUNT=`jq -r .bad_sig_losses[0].loss < test-audit-coins.json`
+    AMOUNT=$(jq -r .bad_sig_losses[0].loss < test-audit-coins.json)
     if test "x$AMOUNT" == "xTESTKUDOS:0"
     then
         exit_fail "Reported total amount wrong: $AMOUNT"
     fi
 
-    PROFIT=`jq -r .amount_arithmetic_inconsistencies[0].profitable < 
test-audit-coins.json`
+    PROFIT=$(jq -r .amount_arithmetic_inconsistencies[0].profitable < 
test-audit-coins.json)
     if test "x$PROFIT" != "x-1"
     then
         exit_fail "Reported profitability wrong: $PROFIT"
@@ -1789,7 +1996,7 @@ function test_30() {
     jq -e .emergencies[0] < test-audit-coins.json > /dev/null && exit_fail 
"Unexpected emergency detected in ordinary run"
     echo "OK"
     # Undo
-    echo "UPDATE exchange.denominations SET fee_refresh_frac=3000000 WHERE 
coin_val=10;" | psql -Aqt $DB
+    echo "UPDATE exchange.denominations SET fee_refresh_frac=3000000 WHERE 
coin_val=10;" | psql -Aqt "$DB"
 
 }
 
@@ -1800,17 +2007,17 @@ function test_31() {
 
     echo "===========31: deposit fee inconsistency ================="
 
-    echo "UPDATE exchange.denominations SET fee_deposit_frac=5000000 WHERE 
coin_val=8;" | psql -Aqt $DB
+    echo "UPDATE exchange.denominations SET fee_deposit_frac=5000000 WHERE 
coin_val=8;" | psql -Aqt "$DB"
 
     run_audit aggregator
     echo -n "Testing inconsistency detection... "
-    AMOUNT=`jq -r .irregular_loss < test-audit-coins.json`
+    AMOUNT=$(jq -r .irregular_loss < test-audit-coins.json)
     if test "x$AMOUNT" == "xTESTKUDOS:0"
     then
         exit_fail "Reported total amount wrong: $AMOUNT"
     fi
 
-    OP=`jq -r --arg dep "deposit" '.bad_sig_losses[] | select(.operation == 
$dep) | .operation'< test-audit-coins.json | head -n1`
+    OP=$(jq -r --arg dep "deposit" '.bad_sig_losses[] | select(.operation == 
$dep) | .operation'< test-audit-coins.json | head -n1)
     if test "x$OP" != "xdeposit"
     then
         exit_fail "Reported wrong operation: $OP"
@@ -1818,7 +2025,7 @@ function test_31() {
 
     echo "OK"
     # Undo
-    echo "UPDATE exchange.denominations SET fee_deposit_frac=2000000 WHERE 
coin_val=8;" | psql -Aqt $DB
+    echo "UPDATE exchange.denominations SET fee_deposit_frac=2000000 WHERE 
coin_val=8;" | psql -Aqt "$DB"
 }
 
 
@@ -1830,20 +2037,22 @@ function test_32() {
 
     echo "===========32: known_coins signature wrong w. 
aggregation================="
     # Modify denom_sig, so it is wrong
-    OLD_SIG=`echo 'SELECT denom_sig FROM exchange.known_coins LIMIT 1;' | psql 
$DB -At`
-    COIN_PUB=`echo "SELECT coin_pub FROM exchange.known_coins WHERE 
denom_sig='$OLD_SIG';"  | psql $DB -At`
-    echo "UPDATE exchange.known_coins SET 
denom_sig='\x0000000100000000287369672d76616c200a2028727361200a202028732023354238373142374339303644464330344242443045303935324641364246413246353730313937413131343735374632463232333239464444314632464333344539393941333636343033423341313332444446423941383335383346453635444237433543444530444145303537443836333643454142383446384332384334444630414436303034343041303835343536303937383343443133323939373642364243343731304132463241413241443541383330343243434
 [...]
+    OLD_SIG=$(echo 'SELECT denom_sig FROM exchange.known_coins LIMIT 1;' | 
psql "$DB" -At)
+    COIN_PUB=$(echo "SELECT coin_pub FROM exchange.known_coins WHERE 
denom_sig='$OLD_SIG';"  | psql "$DB" -At)
+# shellcheck disable=SC2028
+    echo "UPDATE exchange.known_coins SET 
denom_sig='\x0000000100000000287369672d76616c200a2028727361200a202028732023354238373142374339303644464330344242443045303935324641364246413246353730313937413131343735374632463232333239464444314632464333344539393941333636343033423341313332444446423941383335383346453635444237433543444530444145303537443836333643454142383446384332384334444630414436303034343041303835343536303937383343443133323939373642364243343731304132463241413241443541383330343243434
 [...]
+        | psql -Aqt "$DB"
 
     run_audit aggregator
     echo -n "Testing inconsistency detection... "
 
-    AMOUNT=`jq -r .total_bad_sig_loss < test-audit-aggregation.json`
+    AMOUNT=$(jq -r .total_bad_sig_loss < test-audit-aggregation.json)
     if test "x$AMOUNT" == "xTESTKUDOS:0"
     then
         exit_fail "Reported total amount wrong: $AMOUNT"
     fi
 
-    OP=`jq -r .bad_sig_losses[0].operation < test-audit-aggregation.json`
+    OP=$(jq -r .bad_sig_losses[0].operation < test-audit-aggregation.json)
     if test "x$OP" != "xwire"
     then
         exit_fail "Reported wrong operation: $OP"
@@ -1886,83 +2095,83 @@ function test_33() {
 
     echo PASS
 
-    LOSS=`jq -r .total_bad_sig_loss < test-audit-aggregation.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_bad_sig_loss < test-audit-aggregation.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong total bad sig loss from aggregation, got unexpected 
loss of $LOSS"
     fi
-    LOSS=`jq -r .irregular_loss < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .irregular_loss < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong total bad sig loss from coins, got unexpected loss of 
$LOSS"
     fi
-    LOSS=`jq -r .total_bad_sig_loss < test-audit-reserves.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_bad_sig_loss < test-audit-reserves.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong total bad sig loss from reserves, got unexpected loss 
of $LOSS"
     fi
 
     echo -n "Test for wire amounts... "
-    WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_in_delta_plus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta plus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_in_delta_minus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta minus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_out_delta_plus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta plus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_wire_out_delta_minus < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total wire delta minus wrong, got $WIRED"
     fi
-    WIRED=`jq -r .total_misattribution_in < test-audit-wire.json`
-    if test $WIRED != "TESTKUDOS:0"
+    WIRED=$(jq -r .total_misattribution_in < test-audit-wire.json)
+    if [ "$WIRED" != "TESTKUDOS:0" ]
     then
         exit_fail "Expected total misattribution in wrong, got $WIRED"
     fi
     echo PASS
 
     echo -n "Checking for unexpected arithmetic differences "
-    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-aggregation.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_plus < test-audit-aggregation.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from aggregations, got unexpected 
plus of $LOSS"
     fi
-    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-aggregation.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_minus < test-audit-aggregation.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from aggregation, got unexpected 
minus of $LOSS"
     fi
-    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_plus < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from coins, got unexpected plus of 
$LOSS"
     fi
-    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-coins.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_minus < test-audit-coins.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from coins, got unexpected minus of 
$LOSS"
     fi
-    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-reserves.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_plus < test-audit-reserves.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from reserves, got unexpected plus 
of $LOSS"
     fi
-    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-reserves.json`
-    if test $LOSS != "TESTKUDOS:0"
+    LOSS=$(jq -r .total_arithmetic_delta_minus < test-audit-reserves.json)
+    if [ "$LOSS" != "TESTKUDOS:0" ]
     then
         exit_fail "Wrong arithmetic delta from reserves, got unexpected minus 
of $LOSS"
     fi
 
-    DRAINED=`jq -r .total_drained < test-audit-wire.json`
+    DRAINED=$(jq -r .total_drained < test-audit-wire.json)
     if test $DRAINED != "TESTKUDOS:0.1"
     then
         exit_fail "Wrong amount drained, got unexpected drain of $DRAINED"
@@ -1990,13 +2199,13 @@ function test_33() {
 # Sets $fail to 0 on success, non-zero on failure.
 function check_with_database()
 {
-    BASEDB=$1
-    CONF=$1.conf
+    BASEDB="$1"
+    CONF="$1.conf"
     ORIGIN=$(pwd)
     MY_TMP_DIR=$(dirname $1)
     echo "Running test suite with database $BASEDB using configuration $CONF"
-    MASTER_PRIV_FILE=${BASEDB}.mpriv
-    taler-config -f -c ${CONF} -s exchange-offline -o MASTER_PRIV_FILE -V 
${MASTER_PRIV_FILE}
+    MASTER_PRIV_FILE="${BASEDB}.mpriv"
+    taler-config -f -c "${CONF}" -s exchange-offline -o MASTER_PRIV_FILE -V 
${MASTER_PRIV_FILE}
     MASTER_PUB=$(gnunet-ecc -p $MASTER_PRIV_FILE)
 
     echo "MASTER PUB is ${MASTER_PUB} using file ${MASTER_PRIV_FILE}"
@@ -2021,8 +2230,6 @@ function check_with_database()
 
 
 
-
-
 # *************** Main logic starts here **************
 
 # ####### Setup globals ######
@@ -2078,6 +2285,18 @@ echo " DONE"
 PGHOST="$TMPDIR/sockets"
 export PGHOST
 
+# FIXME...
+MYDIR=bar/
+DB=foo
+# foo.sql
+# foo.conf
+# foo.mpriv
+check_with_database "$MYDIR/$DB"
+
+
+exit 0
+
+
 echo "Generating fresh database at $MYDIR"
 if faketime -f '-1 d' ./generate-auditor-basedb.sh "$MYDIR/$DB"
 then

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