The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 15-22 * * *
This cron command translates to the following (in Human-Readable format):
“Every hour between 3:00 pm and 10:00 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 typically used for maintenance tasks, such as backing up data or updating software.
A crontab (also known as a “cron table”) is a file that contains a list of commands that are executed at specified times.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every hour between 3:00 pm and 10:00 pm“:
FUN FACT: One common use for cron jobs is to send out email reminders or notifications based on certain events (such as an upcoming deadline)..
You might want to set up a crontab or cron job to run every hour between 3:00 pm and 10:00 pm for several reasons, including:
- Scheduling a backup to run every evening
- Running a script to update data from an external source
- Sending out a daily report email
- Generating statistics for the day
Similar Cron Jobs
You might also want to run a crontab:
- every 10 hours
- every 12 hours
- every 5 hours
- every 9 hours
- every hour between 12:00 pm and 8:00 pm
- every hour between 4:00 am and 7:00 am
- every hour between 7:00 am and 6:00 pm
FUN FACT: Cron is one of the most versatile tools in a Linux administrator’s toolbox..
In this article, you learned how to set up a cron job that runs every hour between 3:00 pm and 10:00 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.