The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
30 15 */5 * *
This cron command translates to the following (in Human-Readable format):
“Every 5 days at 3:30 pm.”
What is a Cron Job & Crontab?
A cron job is a time-based task that is set to run at a specific interval. For example, a cron job could be set to run every day at midnight in order to update a database or send out nightly emails. Cron jobs are typically used for maintenance tasks that need to be performed regularly.
A crontab is a file that contains a list of commands to be executed by the cron daemon. The commands in the crontab are executed at the specified times.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 5 days at 3:30 pm“:
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 5 days at 3:30 pm for several reasons, including:
- Send a daily digest of new content to subscribers
- Archive old data that is no longer needed
- Generate reports on system usage
- Back up data to remote storage
- Delete temporary files that are no longer needed
Similar Cron Jobs
You might also want to run a crontab:
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 5 days at 3:30 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.