Does exist a method to list all jobs in crontab for all users on a system

The title says everything.

I'm using Fedora 11.

From serverfault Luc M

• cat /var/spool/cron/*

  Many distributions have additional system crons configured via /etc as well. For example, CentOS has files in /etc/cron*

  Let me know if you have any further questions.

  From Warner

• I don't think so

  You could do something like this:

  for crontab in `ls /etc/cron.*/* /var/spool/cron/* /etc/crontab`
  do
  echo $crontab
  cat $crontab
  done
  

  From Richard Holloway

• There is no native command to do this, but you can use a simple bash oneliner like this:

  for u in $(cut -f1 -d: /etc/passwd); do sudo crontab -u $u -l; done
  

  The above would read out all user entries in /etc/passwd and list their appropriate crontab entries. sudo usage is required, since you'd need superuser privileges to access another user's cron.

  Luc M : Perferct! Thank you very much.

  ktower : This assumes your users are all listed in /etc/passwd. If you use a different naming service, say for example LDAP, to define your user namespace, they will not appear in /etc/passwd. You might instead consider using "getent passwd" in place of the cut command above.
  From Aron Rotteveel