The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
30 19 */4 * *
This cron command translates to the following (in Human-Readable format):
“Every 4 days at 7:30 pm.”
What is a Cron Job & Crontab?
A cron job is a task that is scheduled to run at a specified time or interval. Cron jobs are typically used to perform system maintenance or administration tasks, such as backing up data or generating 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 4 days at 7:30 pm“:
FUN FACT: You can use cron to schedule just about anything!.
You might want to set up a crontab or cron job to run every 4 days at 7:30 pm for several reasons, including:
- run a backup every 4 days at 7:30 pm
- send a reminder email every 4 days at 7:30 pm
- generate a report every 4 days at 7:30 pm
Similar Cron Jobs
You might also want to run a crontab:
- every 4 days
- every 3 days
- every 9 days
- every 5 days
- every 8 days
- every 6 days
- every 10 days at 4:30 pm
- every 3 days at 6:00 pm
- every 7 days at 1:30 am
FUN FACT: Cron jobs are named after the Greek god Chronos, who represents time itself..
In this article, you learned how to set up a cron job that runs every 4 days at 7:30 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 cron job cheat sheet for a list of hundreds of popular cron jobs.