The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 0 3 */3 *
This cron command translates to the following (in Human-Readable format):
“Every 3 months on day 3 of the month.”
What is a Cron Job & Crontab?
A cron job is a time-based task that is set to run at specific intervals. This can be anything from running a script every hour to backing up a database every day. Cron jobs are typically used for maintenance or automation purposes.
Crontab files are typically stored in the /etc/crontab file, but they can also be stored in individual user’s home directories. To edit your own crontab file, you can use the command “crontab -e”. This will open up the file in your default text editor.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 3 months on day 3 of the month“:
FUN FACT: If a cron job is not properly configured, it might never execute – so make sure you double-check your settings before setting one up!.
You might want to set up a crontab or cron job to run every 3 months on day 3 of the month for several reasons, including:
- Automatically run a script to update software on the third day of every third month
- Automatically generate monthly reports and send them out on the third day of every third month
- Automatically backup data on the third day of every third month
Similar Cron Jobs
You might also want to run a crontab:
- every 1 month
- every 6 months
- every 3 months
- every 4 months
- every 2 months
- every 5 months
- every 6 months on day 30 of the month
- every 3 months on day 20 of the month
FUN FACT: Cron jobs are named after the Greek god Chronos, who represents time itself..
In this article, you learned how to set up a cron job that runs every 3 months on day 3 of the month. Please share this page with friends and colleagues if you find it useful.
If you have any questions, please don’t hesitate to comment below.
If you are looking for cron jobs that run at certain minutes, hours, days, weekdays, or months, or if you are looking for miscellaneous cron jobs, then check out our relevant sections, or visit our cron job cheat sheet for a list of hundreds of popular cron jobs.