10 comment

1. Thank you for a very good summary. If a cron task is required to be executed on a schedule other than hourly, daily, weekly, or monthly, it can be added to the /etc/cron.d/ directory.

2. view crontab from all users:

   cat /var/spool/cron/*

3. crontab -l just lists the jobs for the user who ran the command.

   So, to view root’s jobs, you’d either need to be logged in as root or run it with sudo.

4. There is also very handy script to view all users crontabs:
   http://stackoverflow.com/questions/134906/how-do-i-list-all-cron-jobs-for-all-users

5. How do we check running cronjob process.
   I guess, its from ps -ef | grep file.sh

   or any other suggestion.

   1. To check running cronjob process use:crontab -l

6. To list all user’s crobtab:

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

7. How does one check the “version” of cron running? How can one know if their cron is a “vixie-style” crontab or not?

   1. Try the following:

      ## debian/ubuntu, see version and man page for syntax ##
       dpkg -p cron
       man cron
      ## RHEL/CentOS specific info ##
       yum info cronie
       man crond
      ## See man page
      

8. I do this task manually
   ./getConfig ‘indirect’ ‘./(Command task)’ ‘./(Credential.csv’ ‘/usr/cronout/’ (standalone server)
   in command task there is a “cat /etc/ssh/sshd_config” but I saw blank sshd_config even though I can see details about sshd_config when I run those task manually. Can you help me?

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