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Cron Job Every 4 Days At 11:30 am (Crontab)

This page will help you quickly and easily set up a cron job to run every 4 days at 11:30 am.

The Cron Job/Crontab

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

30 11 */4 * *

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

“Every 4 days at 11:30 am.”

What is a Cron Job & Crontab?

A cron job is a task that is scheduled to run at a specific time or interval. Cron jobs are commonly used to automate system maintenance or administration tasks, such as running backups or sending emails.

A crontab (also known as a “cron table”) is a file that contains a list of commands that are executed at 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 4 days at 11:30 am“:

  • Field 1: (30) indicates that the task will be run at minute 30.
  • Field 2: (11) indicates that the task will be run at hour 11 (11 am).
  • Field 3: (*/4) indicates that the task will be run every 4 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: A common use for cron jobs is to generate periodic reports – for example, you could set up a cron job to automatically generate and send out a report on website traffic statistics every week..

    Use Cases

    You might want to set up a crontab or cron job to run every 4 days at 11:30 am for several reasons, including:

    • To run a daily backup script every 4 days at 11:30 am
    • To send out a reminder email to employees every 4 days at 11:30 am
    • To check for updates to a software package every 4 days at 11:30 am

    Similar Cron Jobs

    You might also want to run a crontab:

    FUN FACT: Cron jobs are named after the Greek god of time, Chronos – so now you know where the name comes from!.

    Wrapping Up

    In this article, you learned how to set up a cron job that runs every 4 days at 11:30 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.

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