display crontabs of all users then send as email (run as root)

cronjobs.sh

#!/bin/bash
#List all cron jobs for all users
> cronjobs.sh.out
for user in `cat /etc/passwd | cut -d":" -f1`;
do
        echo "# ===== crontabs of $user =====" >> cronjobs.sh.out;
        crontab -l -u $user >> cronjobs.sh.out;
done
cat cronjobs.sh.out | mail -s "cronjobs list" [email protected]
rm cronjobs.sh.out