The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
* 4-22 * * *
This cron command translates to the following (in Human-Readable format):
“Every minute between 4:00 am 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.
Crontab files are typically stored in the /etc/crontab file, but they can also be stored in individual user’s home directories. To edit your own crontab file, you can use the command “crontab -e”. This will open up the file in your default text editor.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every minute between 4:00 am 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 minute between 4:00 am and 10:00 pm for several reasons, including:
- Log analysis
- Generating reports
- Sending out reminders or notifications
- Data backup
- Synchronizing data across multiple servers
Similar Cron Jobs
You might also want to run a crontab:
- every 11 minutes
- every 13 minutes
- every minute
- every 6 minutes
- every 18 minutes
- every 2 minutes
- every minute between 6:00 am and 10:00 am
- every minute between 3:00 am and 2:00 pm
- every minute between 5:00 am and 11:00 pm
FUN FACT: When editing your crontab, it is important to use a text editor that supports Unix-style line endings (LF), as opposed to Windows-style line endings (CRLF)..
In this article, you learned how to set up a cron job that runs every minute between 4:00 am 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.