Can I see a list of jobs that cron runs @reboot?

Question

In /var/log/cron.log I noticed that CRON runs "@reboot jobs" right after I start my computer.

Is there a way for me to see the list of the jobs CRON triggers then?

Answer 1

I don't think there's an easy way to see all configured cron jobs.

First, check the global crontab file under /etc/crontab for anything containing @reboot.

grep '^\s*@reboot' /etc/crontab

As root, you can check the crontab of your users like this:

crontab -u $user -l | grep '^\s*@reboot'

Answer 2

You can run

sudo sh -c 'cat /etc/crontab \
  /etc/cron.d/* \
  /var/spool/cron/crontabs/*'

to see all cron jobs.

Filter it with

sudo sh -c 'cat /etc/crontab \
  /etc/cron.d/* \
  /var/spool/cron/crontabs/*' | grep '^\s*@reboot'

(as noted by @rexkogitans)