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

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

The Cron Job/Crontab

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

0 20 */8 * *

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

“Every 8 days at 8:00 pm.”

What is a Cron Job & Crontab?

A cron job is a task that is scheduled to run at a specific time or interval. Cron is a Linux utility that enables users to schedule tasks to be executed automatically at a specified time or interval. A cron job is typically used to automate system maintenance or administration tasks, such as running backups or sending emails.

A crontab is a table or list of commands that are scheduled to run at specified times. The commands in a crontab file (also called a “cron table”) are normally executed by the cron daemon, which runs in the background and executes these commands automatically.

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 8:00 pm“:

  • Field 1: (0) indicates that the task will be run at minute 0.
  • Field 2: (20) indicates that the task will be run at hour 20 (8 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: Cron jobs are named after the Greek god Chronos, who represents time itself..

    Use Cases

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

    • A user wants to be reminded every 8 days to take their medication at 8:00 pm.
    • A cron job is set up to run a script that backups a database every 8 days at 8:00 pm.

    Similar Cron Jobs

    You might also want to run a crontab:

    FUN FACT: Cron jobs can be set up to run at specific times, or they can be configured to run periodically (e.g., every hour)..

    Wrapping Up

    In this article, you learned how to set up a cron job that runs every 8 days at 8:00 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 crontab cheat sheet for a list of hundreds of popular cron jobs.

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