The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 0 29 * *
This cron command translates to the following (in Human-Readable format):
“Every 1 month on day 29 of the month.”
What is a Cron Job & Crontab?
A cron job is a time-based task that is set to run at specific intervals. This can be anything from running a script every hour to backing up a database every day. Cron jobs are typically used for maintenance tasks or tasks that need to be performed regularly, such as checking for updates or sending out reports.
A crontab is a file containing commands and instructions for the cron daemon to execute.
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 29 of the month“:
FUN FACT: One common use for cron jobs is to send out email reminders or notifications based on certain events (such as an upcoming deadline)..
You might want to set up a crontab or cron job to run every 1 month on day 29 of the month for several reasons, including:
- A script that generates a report of activity for the month and emails it to the boss
- A script that cleans up temporary files older than 1 month
- A script that backs up all databases
- A script that updates software on servers
Similar Cron Jobs
You might also want to run a crontab:
- every 4 months
- every 3 months
- every 2 months
- every 5 months
- every 6 months on day 21 of the month
- every 1 month on day 10 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 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.