The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
30 4 */5 * *
This cron command translates to the following (in Human-Readable format):
“Every 5 days at 4:30 am.”
What is a Cron Job & Crontab?
A cron job is a scheduled task that is typically executed automatically at a predetermined time or interval. Cron jobs are often used to perform routine system maintenance tasks, such as backing up files or databases, deleting temporary files, or sending email notifications.
Crontab files are stored in the “/etc/cron*” directories on most Linux systems. Each user has their own crontab file, and there is also a system-wide crontab file that can be used to schedule system tasks.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 5 days at 4:30 am“:
FUN FACT: Cron jobs are named after the Greek god Chronos, who represents time itself..
You might want to set up a crontab or cron job to run every 5 days at 4:30 am for several reasons, including:
- Sending a daily report on server usage statistics to the system administrator
- Backing up user data from the company’s database
- Generating a report on sales figures for the previous day
- Clearing out temporary files that are no longer needed
Similar Cron Jobs
You might also want to run a crontab:
- every 7 days
- every 5 days
- every 10 days
- every 6 days
- every 4 days
- every 3 days
- every 9 days at 11:30 pm
- every 6 days at 5:30 pm
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 5 days at 4:30 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.