The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
50 */9 * * *
This cron command translates to the following (in Human-Readable format):
“Every 9 hours at 50 minutes past the hour.”
What is a Cron Job & Crontab?
A cron job is a time-based task that is set to run at a specific interval. For example, a cron job could be set to run every day at midnight in order to update a database or send out nightly emails. Cron jobs are typically used for maintenance tasks that need to be performed regularly.
Crontab is a file that contains instructions for the cron daemon, which is a program that executes commands at specified intervals. Crontab files are typically edited with the crontab command, which allows users to create, edit, and delete their own crontab files.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 9 hours at 50 minutes past the hour“:
FUN FACT: Cron jobs are used to schedule commands or scripts to run automatically at a specified time and date..
You might want to set up a crontab or cron job to run every 9 hours at 50 minutes past the hour for several reasons, including:
- Sending a daily report at 9:50 AM
- Checking for new users every 9 hours
- Running a backup at 9:50 PM
Similar Cron Jobs
You might also want to run a crontab:
- every 1 hour
- every 10 hours
- every 11 hours
- every 2 hours
- every 7 hours
- every 8 hours
- every hour between 3:00 am and 9:00 pm
- every hour between 5:00 am and 8:00 am
FUN FACT: Cron jobs can be used to automate just about any task that needs to be performed regularly – so get creative and see what you can come up with!.
In this article, you learned how to set up a cron job that runs every 9 hours at 50 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 crontab cheat sheet for a list of hundreds of popular cron jobs.