The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
30 8 */5 * *
This cron command translates to the following (in Human-Readable format):
“Every 5 days at 8:30 am.”
What is a Cron Job & Crontab?
A crontab (also known as a “cron table”) is a file that contains a list of commands that are executed at specified times.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 5 days at 8:30 am“:
FUN FACT: Cron jobs are named after the Greek god of time, Chronos – so now you know where the name comes from!.
You might want to set up a crontab or cron job to run every 5 days at 8:30 am for several reasons, including:
- To run a script that updates a database
- To run a backup script
- To generate reports
- To send out email reminders
Similar Cron Jobs
You might also want to run a crontab:
- every 8 days
- every 6 days
- every 7 days
- every 3 days
- every 10 days
- every 2 days
- every 2 days at 5:30 pm
- every 5 days at 3:00 am
- every 9 days at 9:30 am
FUN FACT: If you need to temporarily disable a cron job, you can simply comment out the line in the crontab file that corresponds to that particular task..
In this article, you learned how to set up a cron job that runs every 5 days at 8:30 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 cron job cheat sheet for a list of hundreds of popular cron jobs.