The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 5 */7 * *
This cron command translates to the following (in Human-Readable format):
“Every 7 days at 5:00 am.”
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 tasks or tasks that need to be performed regularly, such as checking for updates or sending out reports.
A crontab is a text file that contains a list of commands to be run at specified times. The commands in the crontab are executed by the cron daemon, which runs on most Unix-like systems.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 7 days at 5:00 am“:
FUN FACT: If you want to see what commands are scheduled in your crontab, type: “crontab -l”.
You might want to set up a crontab or cron job to run every 7 days at 5:00 am for several reasons, including:
- To run a backup of all the files on the server
- To send out a weekly report to all the users
- To generate a new set of data for analysis
Similar Cron Jobs
You might also want to run a crontab:
- every 10 days
- every 1 day
- every 7 days
- every 8 days
- every 4 days
- every 5 days
- every 1 day at 9:00 pm
- every 4 days at 2:00 am
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..
In this article, you learned how to set up a cron job that runs every 7 days at 5:00 am. 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.