Cron Job Every Minute Between 8:00 pm & 9:00 pm (Crontab)

This page will help you quickly and easily set up a cron job to run every minute between 8:00 pm and 9:00 pm.

The Cron Job/Crontab

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

* 20-21 * * *

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

“Every minute between 8:00 pm and 9:00 pm.”

What is a Cron Job & Crontab?

A cron job is a scheduled task that is typically executed by the server in order to automate certain processes or tasks. For example, a cron job could be set up to automatically backup a database every night at 2am.

A crontab is a text file containing a list of commands that are executed at specified times. The commands in the crontab are executed by the cron daemon, which runs in the background and checks for new entries every minute.

Cron Fields

Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every minute between 8:00 pm and 9:00 pm“:

  • Field 1: (*) indicates that the task will be run every minute.
  • Field 2: (20-21) indicates that the task will be run between hours 20 and 21 (8 pm to 9 pm).
  • Field 3: (*) indicates that the task will be run every day of the month.
  • 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: When editing your crontab, it is important to use a text editor that supports Unix-style line endings (LF), as opposed to Windows-style line endings (CRLF)..

    Use Cases

    You might want to set up a crontab or cron job to run every minute between 8:00 pm and 9:00 pm for several reasons, including:

    • Backing up your data
    • Generate reports
    • Restart a service
    • Backup a database

    Similar Cron Jobs

    You might also want to run a crontab:

    FUN FACT: Cron is one of the most powerful tools available on a Linux system – use it wisely!.

    Wrapping Up

    In this article, you learned how to set up a cron job that runs every minute between 8:00 pm and 9:00 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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