The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
30 13 */2 * *
This cron command translates to the following (in Human-Readable format):
“Every 2 days at 1:30 pm.”
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 or automation purposes.
A crontab is a file that contains a list of commands that are to be executed at specified times. The commands in the crontab are executed by the cron daemon, which runs in the background.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 2 days at 1:30 pm“:
FUN FACT: When editing your crontab, it is important to use a text editor that supports Unix-style line endings (LF), as opposed to Windows-style line endings (CRLF)..
You might want to set up a crontab or cron job to run every 2 days at 1:30 pm for several reasons, including:
- A daily report is generated and emailed every 2 days
- A backup script runs every 2 days
- A cron job runs every 2 days to update a remote database
Similar Cron Jobs
You might also want to run a crontab:
- every 9 days
- every 5 days
- every 7 days
- every 10 days
- every 6 days at 1:00 pm
- every 9 days at 3:30 pm
- every 7 days at 10:00 am
FUN FACT: Cron jobs are stored in a file called “crontab”, which is short for “cron table”..
In this article, you learned how to set up a cron job that runs every 2 days at 1:30 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.