The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 0 20 * *
This cron command translates to the following (in Human-Readable format):
“Every 1 month on day 20 of the month.”
What is a Cron Job & Crontab?
A cron job is a task that is scheduled to run at a specified time or interval. Cron jobs are commonly used to automate system maintenance or administration tasks, such as running backups or sending emails.
A crontab is a file that contains a list of commands to be executed by the cron daemon. The commands in the crontab are executed at the specified times.
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 20 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 1 month on day 20 of the month for several reasons, including:
- Automatically send a report to the marketing team on the 20th of every month
- Reset customer passwords that have been inactive for more than 30 days
- Archive data from the database that is more than 1 year old
- Send an email to the sales team with updated product information
Similar Cron Jobs
You might also want to run a crontab:
- every 6 months
- every 5 months
- every 4 months
- every 2 months
- every 1 month
- every 3 months
- every 3 months on day 25 of the month
- every 3 months on day 16 of the month
- every 1 month on day 2 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 1 month on day 20 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.