*shell*: messed with PS1 and echo rm became rm

[Dan Jacobson]

Since you are interested in wasting your energies in debugging obscure
corners of emacs, here in *shell* i did:
07:06 ~# cd /etc/init.d/
07:09 init.d# ./fetchmail
Usage: /etc/init.d/fetchmail {start|stop|restart|force-reload|awaken|debug-run}
07:09 1 init.d# ./fetchmail debug-run
bash: debug-run: command not found  *******
07:10 127 init.d# $PWD/fetchmail debug-run
/etc/init.d/fetchmail: Initiating debug run of system-wide fetchmail service...

the only problem occurred where I put the ******* and might have been
caused by the $?=1 popping up in my prompt.

Because my
PROMPT_COMMAND='
        z=" $?"
        z=${z# 0}
        case $PWD in
        $HOME) pwd=\~;;
        *) pwd=${PWD##*/};;
        esac'
PS1="$my_color_on\A\$z \$pwd\\$""$my_color_off "
 
Anyway, you've got more important things to fix, but i suppose i
better watch out now as "echo rm importaint_file" will become "rm
importaint_file".
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