Crontab is a time-based job scheduler in Unix-like systems. It allows users to schedule jobs to run at specific times or intervals. Checking if crontab is running is important to ensure that scheduled jobs are being executed as intended. There are several ways to check if crontab is running.
One way to check if crontab is running is to use the ‘crontab -l’ command. This command will list all of the cron jobs that are currently configured. If the output of the command is empty, then no cron jobs are scheduled. Another way to check if crontab is running is to use the ‘ps’ command. This command will list all of the processes that are currently running on the system. If the output of the command includes a process named ‘cron’, then crontab is running.