Public bug reported:
I had my own version of the exit function declared in one of my shell
startup files. It worked in bash and zsh, but not in /bin/sh on Ubuntu.
Adding to the problem, it seems GDM uses /bin/sh inspite of my shell
being /bin/zsh.
$ cat exittest
#!/bin/sh
exit()
{
case $- in *m*)
# this way works in bash and zsh
jobs | wc -l | grep -q '^0$'
if test $? -eq 0
then
command exit "$@"
else
jobs
fi
esac
}
exit
$ ./exittest
./exittest: 3: Syntax error: Bad function name
$ dpkg -S /bin/sh
diversion by dash from: /bin/sh
diversion by dash to: /bin/sh.distrib
bash: /bin/sh
$ dpkg -l dash | grep '^i'
ii dash 0.5.4-9ubuntu1
POSIX-compliant shell
** Affects: dash (Ubuntu)
Importance: Undecided
Status: New
--
can't define custom exit function
https://bugs.launchpad.net/bugs/301225
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