In the last episode (Sep 16), Paul Macdonald said:
> Is there a simple way of testing whether a given script was called via cron,
>
> I'd rather find a solution that would work from within the script rather
> than setting an environment variable in the crontab.
You check to see if stdin is a terminal, but that's not conclusive. One way
to know for sure is to look at the name of the process that launched you:
if [ ! -t 0 ] ; then
echo "no tty, possibly run from cron"
fi
parent=$(ps -o command= -p $PPID)
case $parent in
*cron* ) echo "parent is $parent, almost certainly cron" ;;
esac
--
Dan Nelson
[email protected]
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