The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 9 */6 * *
This cron command translates to the following (in Human-Readable format):
“Every 6 days at 9:00 am.”
What is a Cron Job & Crontab?
A cron job is a scheduled task that is typically executed automatically at a predetermined time or interval. Cron jobs are often used to perform routine system maintenance tasks, such as backing up files or databases, deleting temporary files, or sending email notifications.
A crontab is a file that contains a list of commands that are to be executed at specified times. The commands in the crontab are executed by the cron daemon.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 6 days at 9:00 am“:
FUN FACT: When editing your crontab, it is important to use a text editor that supports Unix-style line endings (LF), as opposed to Windows-style line endings (CRLF)..
You might want to set up a crontab or cron job to run every 6 days at 9:00 am for several reasons, including:
- Automatically send a report to management every 6 days
- Clear the cache every 6 days
- Run a script to update data from an external source every 6 days
Similar Cron Jobs
You might also want to run a crontab:
- every 3 days
- every 6 days
- every 4 days
- every 1 day
- every 7 days
- every 8 days
- every 2 days at 7:00 am
- every 6 days at 10:30 am
- every 1 day at 7:00 pm
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 6 days at 9:00 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.