The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
30 3 */10 * *
This cron command translates to the following (in Human-Readable format):
“Every 10 days at 3:30 am.”
What is a Cron Job & Crontab?
A cron job is a time-based task that is typically set up to run automatically at regular intervals. For example, a cron job might be used to send out a daily email report or to back up files every night.
Each user has their own crontab file, and the commands in this file are only executed by that particular user. The file contains instructions for the cron daemon. To edit your crontab file, you can use the crontab command.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 10 days at 3:30 am“:
FUN FACT: A common use for cron jobs is to generate periodic reports – for example, you could set up a cron job to automatically generate and send out a report on website traffic statistics every week..
You might want to set up a crontab or cron job to run every 10 days at 3:30 am for several reasons, including:
- run a backup of important data every 10 days
- generate reports on system usage statistics every 10 days
- check for updates to software dependencies every 10 days
Similar Cron Jobs
You might also want to run a crontab:
- every 9 days
- every 1 day
- every 10 days
- every 8 days
- every 3 days
- every 2 days
- every 10 days at 12:30 pm
- every 5 days at 7:30 am
- every 6 days at 9:30 pm
FUN FACT: Cron is one of the most powerful tools available on a Linux system – use it wisely!.
In this article, you learned how to set up a cron job that runs every 10 days at 3:30 am. 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.