Cron Job Every 8 Days At 5:00 pm (Crontab)

This page will help you quickly and easily set up a cron job to run every 8 days at 5:00 pm.

The Cron Job/Crontab

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

0 17 */8 * *

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

“Every 8 days at 5:00 pm.”

What is a Cron Job & Crontab?

A cron job is a scheduled task that is typically executed automatically at a predetermined time or interval. Cron jobs are commonly used to perform system maintenance or administrative tasks, such as backing up data or generating reports.

A crontab is a file that contains commands to be run at specified times. The crontab file is typically edited using the crontab command, which can be used to list, edit, or delete the contents of the file.

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 5:00 pm“:

Field 1: (0) indicates that the task will be run at minute 0.

Field 2: (17) indicates that the task will be run at hour 17 (5 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.

 

FUN FACT: Cron jobs are stored in a file called “crontab”, which is short for “cron table”..

Use Cases

You might want to set up a crontab or cron job to run every 8 days at 5:00 pm for several reasons, including:

• running a backup every 8 days at 5:00 pm
• sending an email to a user every 8 days at 5:00 pm
• checking for updates to a piece of software every 8 days at 5:00 pm

Similar Cron Jobs

You might also want to run a crontab:

• every 3 days
• every 6 days
• every 5 days
• every 10 days
• every 1 day at 11:30 am
• every 3 days at 7:00 pm
• every 10 days at 6:30 pm

FUN FACT: Cron is one of the most versatile tools in a Linux administrator’s toolbox..

Wrapping Up

In this article, you learned how to set up a cron job that runs every 8 days at 5:00 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.