Cron Job Every 8 Days (Crontab)

This page will help you quickly and easily set up a cron job to run every 8 days.

The Cron Job/Crontab

To have your task run at this frequency, use the following cron:

0 0 */8 * *

This cron command translates to the following (in Human-Readable format):

“Every 8 days.”

What is a Cron Job & Crontab?

A cron job is a scheduled task that is typically executed by the server in order to automate certain processes or tasks. For example, a cron job could be set up to automatically backup a database every night at 2am.

The crontab is a file that contains instructions for the cron daemon. The crontab is typically edited using the crontab command.

Cron Fields

Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 8 days“:

  • Field 1: (0) indicates that the task will be run at minute 0.
  • Field 2: (0) indicates that the task will be run at hour 0 (12 am).
  • Field 3: (*/8) indicates that the task will be run every 8 days.
  • Field 4: (*) indicates that the task will be run every month.
  • Field 5: (*) indicates that the task will be run every day of the week.
  •  

    FUN FACT: If you need to delete a cron job, simply remove the corresponding line from the crontab file and save your changes..

    Use Cases

    You might want to set up a crontab or cron job to run every 8 days for several reasons, including:

    • Sending a reminder email to a user every 8 days
    • Backup data to an external drive every 8 days
    • Generate a report of system usage statistics every 8 days

    Similar Cron Jobs

    You might also want to run a crontab:

    FUN FACT: When configuring a cron job, you can specify the minute, hour, day of the month, month and day of the week when it should run – this gives you a lot of flexibility in terms of when your task will be performed automatically!.

    Wrapping Up

    In this article, you learned how to set up a cron job that runs every 8 days. 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.

    SHARE:

    Leave a Comment