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Cron Job Every 8 Days At 11:00 pm (Crontab)

This page will help you quickly and easily set up a cron job to run every 8 days at 11:00 pm.

The Cron Job/Crontab

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

0 23 */8 * *

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

“Every 8 days at 11:00 pm.”

What is a Cron Job & Crontab?

A cron job is a time-based task that is set to run at specific intervals. This can be anything from running a backup script every night to sending out an email notification once a week. Cron jobs are typically used for maintenance or repetitive tasks.

A crontab is a file that contains a list of commands to be executed by the cron daemon. The commands in the crontab are executed at the specified times.

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 at 11:00 pm“:

  • Field 1: (0) indicates that the task will be run at minute 0.
  • Field 2: (23) indicates that the task will be run at hour 23 (11 pm).
  • 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.
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    FUN FACT: If you want to edit your personal crontab, just type: “crontab -e” at the command prompt..

    Use Cases

    You might want to set up a crontab or cron job to run every 8 days at 11:00 pm for several reasons, including:

    • Scheduling a backup to run every 8 days at 11:00 pm
    • Running a script to update a database every 8 days at 11:00 pm
    • Generating reports every 8 days at 11:00 pm

    Similar Cron Jobs

    You might also want to run a crontab:

    FUN FACT: One common use for cron jobs is to send out email reminders or notifications based on certain events (such as an upcoming deadline)..

    Wrapping Up

    In this article, you learned how to set up a cron job that runs every 8 days at 11:00 pm. 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.

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