The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 0 15 * *
This cron command translates to the following (in Human-Readable format):
“Every 1 month on day 15 of the month.”
What is a Cron Job & Crontab?
A cron job is a scheduled task that is typically executed by the operating system on a regular basis. Cron jobs are often used to perform maintenance or administrative tasks, such as backing up data or updating software.
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 1 month on day 15 of the month“:
FUN FACT: Each user on a system can have their own crontab, and commands in them will be executed as that user..
You might want to set up a crontab or cron job to run every 1 month on day 15 of the month for several reasons, including:
- To run a script that deletes old log files on the 15th day of every month
- To run a script that emails a report on the 15th day of every month
- To create a daily backup on the 15th day of every month
Similar Cron Jobs
You might also want to run a crontab:
- every 4 months
- every 2 months
- every 5 months
- every 1 month
- every 6 months
- every 3 months
- every 1 month on day 4 of the month
- every 1 month on day 6 of the month
- every 1 month on day 9 of the month
FUN FACT: If you want to edit your personal crontab, just type: “crontab -e” at the command prompt..
In this article, you learned how to set up a cron job that runs every 1 month on day 15 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.