The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
1 */4 * * *
This cron command translates to the following (in Human-Readable format):
“Every 4 hours at 1 minutes past the hour.”
What is a Cron Job & Crontab?
A cron job is a scheduled task that is typically executed by the operating system on a regular basis. Cron jobs are often used to perform maintenance or administrative tasks, such as backing up data or updating software.
A crontab is a file that contains a list of commands that are to be executed at specified times. The commands in the crontab are executed by the cron daemon, which runs in the background.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 4 hours at 1 minutes past the hour“:
FUN FACT: You can use cron to schedule just about anything!.
You might want to set up a crontab or cron job to run every 4 hours at 1 minutes past the hour for several reasons, including:
- Checking if a server is still running every 4 hours
- Automatically backing up data every 4 hours
- Sending out a report to a group of people every 4 hours
- Updating software on a computer every 4 hours
Similar Cron Jobs
You might also want to run a crontab:
- every 7 hours
- every 4 hours
- every 5 hours
- every 6 hours
- every 3 hours at 40 minutes past the hour
- every hour between 3:00 pm and 4:00 pm
FUN FACT: Cron jobs are used to schedule commands or scripts to run automatically at a specified time and date..
In this article, you learned how to set up a cron job that runs every 4 hours at 1 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.