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Re: setting enviromment variable
From: |
Anselm Helbig |
Subject: |
Re: setting enviromment variable |
Date: |
Wed, 26 Aug 2009 16:18:46 +0200 |
Hallo!
> setting environment variables does not work anymore.
> I do it like this:
>
> ;; ledger file variable
> (setenv "LEDGER_FILE" (concat (getenv "LEDGER_FILE") "~/ledger/ledger.dat"))
> ;; printer variable
> (setenv "PRINTER" (concat (getenv "PRINTER") "HL2030"))
What this does is that it adds to what is already stored in the
environment variable. If you just want to set the value, you'd do it
like this:
(setenv "LEDGER_FILE" "~/ledger/ledger.dat")
(setenv "PRINTER" "HL2030")
Adding to an environment variable only makes sense for PATH and
friends.
> Evaluating produces:
>
> "~/ledger/ledger.dat~/ledger/ledger.dat~/ledger/ledger.dat~/ledger/ledger.dat"
> "HL2030HL2030HL2030HL2030"
Looks like the code ran four times. 8-)
HTH,
Anselm
--
Anselm Helbig
mailto:anselm.helbig+news2009@googlemail.com