Tip Of The Week
This fragment of shell doesn't do what you'd expect at a quick glance:
if [ $? -ne 0 ]; then
exit $?
fi
The act of checking $? causes $? to be set to the result of the test, so this executes exit 0 if $? is non-zero.
NP: Cosmos, Murcof
Posted by Bastien at Fri Aug 17 12:19:08 2007:
Posted by Ralf Wildenhues at Fri Aug 17 12:33:00 2007:
It does not matter whether "[" is builtin or not.
The shell snippet in question is shorter written as
|| exit $?
(with prior newlines deleted, so that the syntax is valid).
Posted by Andrew at Fri Aug 17 14:06:09 2007:
The shell snippet in question is shorter written as
|| exit $?
(with prior newlines deleted, so that the syntax is valid).
It's probably best to post the solution as well as the problem. But prehaps that's just me.
i.e. Something like:
retval=$?
if [ $retval -ne 0 ]; then
exit $retval
fi
Posted by Andrew at Fri Aug 17 14:06:46 2007:
Posted by Ross at Fri Aug 17 14:15:47 2007:
i.e. Something like:
retval=$?
if [ $retval -ne 0 ]; then
exit $retval
fi
