4 Answers. If you want to know if it’s running you can do something like sudo systemctl status cron or ps aux | grep cron . By default the cron log in Ubuntu is located at /var/log/syslog .

How can I tell if cron is running?

To check to see if the cron daemon is running, search the running processes with the ps command. The cron daemon’s command will show up in the output as crond. The entry in this output for grep crond can be ignored but the other entry for crond can be seen running as root. This shows that the cron daemon is running.

How do I know if a cron job is running in Linux?

The simplest way to validate that cron tried to run the job is to simply check the appropriate log file; the log files however can be different from system to system. In order to determine which log file contains the cron logs we can simply check the occurrence of the word cron in the log files within /var/log .