Cron Job Every 4 Days At 7:00 pm (Crontab)

This page will help you quickly and easily set up a cron job to run every 4 days at 7:00 pm.

The Cron Job/Crontab

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

0 19 */4 * *

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

“Every 4 days at 7:00 pm.”

What is a Cron Job & Crontab?

A cron job is a time-based task that is set to run at specific intervals. These jobs are usually used for maintenance or automation purposes. For example, a cron job could be set to delete temporary files every week so that they don’t take up space on the server.

A crontab is a file containing commands and instructions for the cron daemon to execute. The crontab is used to schedule jobs (commands or shell scripts) to run periodically at certain times or dates.

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 7:00 pm“:

  • Field 1: (0) indicates that the task will be run at minute 0.
  • Field 2: (19) indicates that the task will be run at hour 19 (7 pm).
  • 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: If you want to see what commands are scheduled in your crontab, type: “crontab -l”.

    Use Cases

    You might want to set up a crontab or cron job to run every 4 days at 7:00 pm for several reasons, including:

    • A cron job to update a user’s profile picture from their social media account
    • A cron job to send out a daily digest of new content from subscribed websites
    • A cron job to check for new software updates and notify the user
    • A cron job to calculate how much money the user has spent in the last month and notify them

    Similar Cron Jobs

    You might also want to run a crontab:

    FUN FACT: Cron jobs are automated processes that run on a schedule..

    Wrapping Up

    In this article, you learned how to set up a cron job that runs every 4 days at 7:00 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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