The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 16-18 * * *
This cron command translates to the following (in Human-Readable format):
“Every hour between 4:00 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 typically used for maintenance 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 hour between 4:00 pm and 6:00 pm“:
FUN FACT: When configuring a cron job, you can specify the minute, hour, day of the month, month and day of the week when it should run – this gives you a lot of flexibility in terms of when your task will be performed automatically!.
You might want to set up a crontab or cron job to run every hour between 4:00 pm and 6:00 pm for several reasons, including:
- Checking for updates on a website
- Running a backup
- Sending out a reminder email
- Generating a report
Similar Cron Jobs
You might also want to run a crontab:
- every 12 hours
- every 10 hours
- every 8 hours
- every 7 hours
- every 9 hours
- every hour between 3:00 am and 8:00 am
- every hour between 8:00 am and 7:00 pm
- every 12 hours at 40 minutes past the hour
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)..
In this article, you learned how to set up a cron job that runs every hour between 4:00 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 cron job cheat sheet for a list of hundreds of popular cron jobs.