The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 23 */7 * *
This cron command translates to the following (in Human-Readable format):
“Every 7 days at 11:00 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 is a Linux utility that allows tasks to be automatically run in the background at regular intervals. These tasks are often called “cron jobs.”
Crontab is a file that contains instructions for the cron daemon. The cron daemon is a program that runs in the background and executes tasks at specified times. The crontab file is used to specify which tasks are to be run and when they are to be run.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 7 days at 11:00 pm“:
FUN FACT: When troubleshooting issues with cron jobs, it can be helpful to run them manually from the command line – this will allow you to see any error messages that might be generated..
You might want to set up a crontab or cron job to run every 7 days at 11:00 pm for several reasons, including:
- To run a backup of all user data once per week
- To send a notification to all users about an upcoming event
- To generate a report on usage statistics for the past week
Similar Cron Jobs
You might also want to run a crontab:
- every 8 days
- every 1 day
- every 3 days
- every 2 days
- every 7 days at 12:00 pm
- every 3 days at 8:30 am
- every 3 days at 10:30 am
FUN FACT: Cron is one of the most powerful tools available on a Linux system – use it wisely!.
In this article, you learned how to set up a cron job that runs every 7 days at 11:00 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.