The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
40 * * * *
This cron command translates to the following (in Human-Readable format):
“Every 1 hour at 40 minutes past the hour.”
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 typically used for automating system maintenance or administration tasks, such as running backups or sending email 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 1 hour at 40 minutes past the hour“:
FUN FACT: If a cron job is not properly configured, it might never execute – so make sure you double-check your settings before setting one up!.
You might want to set up a crontab or cron job to run every 1 hour at 40 minutes past the hour for several reasons, including:
- Sending out a notification to users
- Backup up data
- Clearing temporary files
- Running a system update
Similar Cron Jobs
You might also want to run a crontab:
- every 3 hours
- every 2 hours
- every 9 hours
- every 6 hours
- every hour between 9:00 am and 10:00 pm
- every 2 hours at 50 minutes past the hour
- every hour between 3:00 pm and 9:00 pm
FUN FACT: Cron is one of the most powerful tools available on a Linux system – use it wisely!.
In this article, you learned how to set up a cron job that runs every 1 hour at 40 minutes past the hour. 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.