Linux Verify crond Daemon And Cronjobs Are Running

Q. How do I verify or check cronjob is running or not under CentOS / RHEL / Fedora Linux from a shell prompt? A. cron / crond is daemon to execute scheduled commands (Vixie Cron). Usually, it is started automatically from /etc/init.d on entering multi-user runlevels. RHEL / CentOS / Fedora Linux Verify Cron Service You can simply use any one of the following command to see if crond is running or not, enter: # pgrep crond OR # service crond status Sample output: crond (pid 4370) is running... If it is not running type the following two command to start crond: # chkconfig crond on # service crond start Verify cron is running by viewing log file, enter: # tail -f /var/log/cron A note about Debian / Ubuntu Linux Cron service Under Debian and Ububtu Linux cron logs its action logged to the syslog facility i.e. use /var/log/messages file: # tail -f /var/log/messages Find out if cron daemon is running or not, enter: # pgrep cron