The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
* 2-21 * * *
This cron command translates to the following (in Human-Readable format):
“Every minute between 2:00 am and 9:00 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.
Each user has their own crontab file, and the commands in this file are only executed by that particular user. The file contains instructions for the cron daemon. To edit your crontab file, you can use the crontab command.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every minute between 2:00 am and 9:00 pm“:
FUN FACT: Cron jobs are often used to perform regular maintenance tasks, such as running backups or sending out reports..
You might want to set up a crontab or cron job to run every minute between 2:00 am and 9:00 pm for several reasons, including:
- A cron job to run a backup script every night at 2:00 am
- A cron job to send out a daily report email every morning at 9:00 am
- A cron job to check for new software updates every hour
- A cron job to run a security scan of all systems every day at 3:00 pm
Similar Cron Jobs
You might also want to run a crontab:
- every 25 minutes
- every 11 minutes
- every 17 minutes
- every 4 minutes
- every 27 minutes
- every minute between 12:00 am and 4:00 pm
- every minute between 5:00 am and 9:00 pm
- every minute between 5:00 am and 11:00 am
FUN FACT: If you want to edit your personal crontab, just type: “crontab -e” at the command prompt..
In this article, you learned how to set up a cron job that runs every minute between 2:00 am 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.