for user in $(cut -f1 -d: /etc/passwd); do crontab -u $user -l; done
#for user in $(getent passwd | cut -f1 -d: ); do echo $user; crontab -u $user -l; done
#for i in $( ls /home ); do echo $i: ; sudo crontab -u $i -l; done
php artisan schedule:list