Home » Development » Deployment » Cron / Crontab Tips Collection
I will use this article to collect interesting tips and tricks about using the Linux cron. This is not so much about setting up a cron, but about little things I use or discovered!
The cron daemon is a long-running process that executes commands at specific dates and times. You can use this to schedule activities, either as one-time events or as recurring tasks.
For commands that need to be executed repeatedly (e.g., hourly, daily, or weekly), you can use the crontab command. The crontab command creates a crontab file containing commands and instructions for the cron daemon to execute.
Format is: MIN HOUR DOM MON DOW CMDMinute fieldHour fieldDay of monthDay of weekCommand
Run every 5 minutes
Run yearly, monthly, weekly, daily or on reboot.@yearly will run at 00:00 on Jan 1st for every year.@monthly will run at 00:00 on 1st of every month.@weekly will run at 00:00 on starting of every week.@daily will run at 00:00 on every day.@reboot will run after the server has been rebooted
A real cron does not rely on website activity and executes independently.
Do not forget to disable the virtual WordPress Cron in the wp-config.php!
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