The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 0 1 */4 *
This cron command translates to the following (in Human-Readable format):
“Every 4 months on day 1 of the month.”
What is a Cron Job & Crontab?
A crontab is a file that contains instructions for the cron daemon. The cron daemon is a program that runs in the background and executes tasks at specified times. A crontab file typically contains a list of commands, with each command being executed at a specified time.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 4 months on day 1 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 4 months on day 1 of the month for several reasons, including:
- Updating software
- Running a script to generate reports
- Backing up data
Similar Cron Jobs
You might also want to run a crontab:
- every 2 months
- every 5 months
- every 3 months
- every 6 months
- every 4 months on day 28 of the month
- every 1 month on day 29 of the month
- every 3 months on day 7 of the month
FUN FACT: If you want to see what commands are scheduled in your crontab, type: “crontab -l”.
In this article, you learned how to set up a cron job that runs every 4 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.