The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
30 12 */2 * *
This cron command translates to the following (in Human-Readable format):
“Every 2 days at 12:30 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 enables users to schedule tasks to be executed automatically at a specified time or interval. A cron job is typically used to automate system maintenance or administration tasks, such as running backups or sending emails.
A crontab is a file containing commands and instructions for the cron daemon to execute. The crontab is used to schedule jobs (commands or shell scripts) to run periodically at certain times or dates.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 2 days at 12:30 pm“:
FUN FACT: If you need to temporarily disable a cron job, you can simply comment out the line in the crontab file that corresponds to that particular task..
You might want to set up a crontab or cron job to run every 2 days at 12:30 pm for several reasons, including:
- Automatically run a backup of all user data at 12:30 pm every other day
- Send out a report to all users at 12:30 pm every other day
- Check for new software updates at 12:30 pm every other day
- Run a script to clean up temporary files at 12:30 pm every other day
Similar Cron Jobs
You might also want to run a crontab:
- every 2 days
- every 1 day
- every 4 days
- every 8 days
- every 3 days
- every 6 days at 2:00 pm
- every 5 days at 1:00 am
FUN FACT: One common use for cron jobs is to send out email reminders or notifications based on certain events (such as an upcoming deadline)..
In this article, you learned how to set up a cron job that runs every 2 days at 12:30 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.