The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 19-22 * * *
This cron command translates to the following (in Human-Readable format):
“Every hour between 7:00 pm and 10:00 pm.”
What is a Cron Job & Crontab?
A cron job is a time-based task that is set to run at specific intervals. This can be anything from running a script every hour to backing up a database every day. Cron jobs are typically used for maintenance or automation purposes.
A crontab is a table or list of commands that are scheduled to run at specified times. The commands in a crontab file (also called a “cron table”) are normally executed by the cron daemon, which runs in the background and executes these commands automatically.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every hour between 7:00 pm and 10:00 pm“:
FUN FACT: Cron jobs are often used to perform regular maintenance tasks, such as running backups or sending out reports..
You might want to set up a crontab or cron job to run every hour between 7:00 pm and 10:00 pm for several reasons, including:
- Turn off the lights at 10:00 pm
- Make sure the front door is locked at 11:00 pm
- Set the thermostat to 68 degrees at 8:00 pm
Similar Cron Jobs
You might also want to run a crontab:
- every 10 hours
- every 9 hours
- every 1 hour
- every 8 hours
- every hour between 2:00 am and 4:00 am
- every 3 hours at 1 minutes past the hour
- every hour between 12:00 am and 7:00 pm
FUN FACT: If you need to delete a cron job, simply remove the corresponding line from the crontab file and save your changes..
In this article, you learned how to set up a cron job that runs every hour between 7:00 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.