The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
* 17-18 * * *
This cron command translates to the following (in Human-Readable format):
“Every minute between 5:00 pm and 6:00 pm.”
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 commonly used to automate system maintenance or administration tasks, such as running backups or sending emails.
Crontab is a file that contains commands and instructions for the cron daemon to execute. The crontab file is usually located in the /etc/cron directory. Each user on a system can have their own crontab file. The commands in the crontab files are executed by the cron daemon at the specified times.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every minute between 5:00 pm and 6:00 pm“:
FUN FACT: Cron is one of the most versatile tools in a Linux administrator’s toolbox..
You might want to set up a crontab or cron job to run every minute between 5:00 pm and 6:00 pm for several reasons, including:
- A user wants to be notified every minute between 5:00 pm and 6:00 pm of the number of likes their post has on a social media site.
- A cron job is set up to automatically backup a database every minute between 5:00 pm and 6:00 pm.
- A monitoring script runs every minute between 5:00 pm and 6:00 pm to check for errors in a web application.
Similar Cron Jobs
You might also want to run a crontab:
- every 22 minutes
- every 24 minutes
- every 19 minutes
- every 10 minutes
- every 26 minutes
- every minute between 12:00 am and 8:00 pm
- every minute between 9:00 am and 5:00 pm
FUN FACT: If you need to temporarily disable a cron job, you can simply comment out the line in the crontab file that corresponds to that particular task..
In this article, you learned how to set up a cron job that runs every minute between 5:00 pm and 6:00 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.