The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
1 */8 * * *
This cron command translates to the following (in Human-Readable format):
“Every 8 hours at 1 minutes past the hour.”
What is a Cron Job & Crontab?
A cron job is a time-based task that is set to run at a specific interval. For example, a cron job can be set to run every day at midnight in order to update a database or send out nightly emails. Cron jobs are typically used for maintenance tasks that need to be performed on a regular basis.
A crontab is a file that contains commands to be run at specified times. The crontab file is typically edited using the crontab command, which can be used to list, edit, or delete the contents of the file.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 8 hours at 1 minutes past the hour“:
FUN FACT: If you want to edit your personal crontab, just type: “crontab -e” at the command prompt..
You might want to set up a crontab or cron job to run every 8 hours at 1 minutes past the hour for several reasons, including:
- Run a backup
- Rotate logs
- Clear caches
- Send out email notifications
Similar Cron Jobs
You might also want to run a crontab:
- every 9 hours
- every 10 hours
- every 3 hours
- every 2 hours
- every hour between 3:00 am and 5:00 pm
- every hour between 12:00 am and 10:00 pm
- every hour between 11:00 am and 7:00 pm
FUN FACT: The most common way to edit cron jobs is using the crontab command – this stands for “cron table,” and it contains all the information about when your tasks should be executed..
In this article, you learned how to set up a cron job that runs every 8 hours at 1 minutes past the hour. 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.