The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 0 1 */3 *
This cron command translates to the following (in Human-Readable format):
“Every 3 months on day 1 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 is a Linux utility that enables users to schedule tasks to be executed automatically at a specified time or interval. A cron job is typically used to automate system maintenance or administration tasks, such as running backups or sending emails.
A crontab (also known as a “cron table”) is a file that contains a list of commands that are executed at specified times.
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 1 of the month“:
FUN FACT: Cron is typically used for things like system maintenance tasks, running backups etc..
You might want to set up a crontab or cron job to run every 3 months on day 1 of the month for several reasons, including:
- To send a reminder to customers every 3 months to renew their subscription
- To check for updates to a software package every 3 months
- To generate reports on server usage every 3 months
Similar Cron Jobs
You might also want to run a crontab:
- every 1 month
- every 5 months
- every 6 months
- every 3 months
- every 4 months
- every 2 months
- every 5 months on day 20 of the month
- every 1 month on day 18 of the month
FUN FACT: Cron is one of the most versatile tools in a Linux administrator’s toolbox..
In this article, you learned how to set up a cron job that runs every 3 months on day 1 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 crontab cheat sheet for a list of hundreds of popular cron jobs.