The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 0 29 */3 *
This cron command translates to the following (in Human-Readable format):
“Every 3 months on day 29 of the month.”
What is a Cron Job & Crontab?
A cron job is a task that is scheduled to run at a specific time or interval. Cron jobs are commonly used to automate system maintenance or administration tasks, such as running backups or sending emails.
Crontab files are stored in the “/etc/cron*” directories on most Linux systems. Each user has their own crontab file, and there is also a system-wide crontab file that can be used to schedule system tasks.
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 29 of the month“:
FUN FACT: Cron jobs can be used to automate just about any task that needs to be performed regularly – so get creative and see what you can come up with!.
You might want to set up a crontab or cron job to run every 3 months on day 29 of the month for several reasons, including:
- To send a report on the 29th day of every third month
- To run a script on the 29th day of every third month
- To perform an operation on the 29th day of every third month
Similar Cron Jobs
You might also want to run a crontab:
- every 2 months
- every 3 months
- every 6 months
- every 5 months
- every 1 month
- every 4 months
- every 6 months on day 25 of the month
- every 1 month on day 8 of the month
FUN FACT: When configuring a cron job, you can specify the minute, hour, day of the month, month and day of the week when it should run – this gives you a lot of flexibility in terms of when your task will be performed automatically!.
In this article, you learned how to set up a cron job that runs every 3 months on day 29 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.