The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 0 18 */2 *
This cron command translates to the following (in Human-Readable format):
“Every 2 months on day 18 of the month.”
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 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 2 months on day 18 of the month“:
FUN FACT: Cron jobs can be set up to run at specific times, or they can be configured to run periodically (e.g., every hour)..
You might want to set up a crontab or cron job to run every 2 months on day 18 of the month for several reasons, including:
- Calculate monthly average temperatures and send results to a group of scientists
- Back up all user data on the 18th day of every other month
- Generate a report of system usage statistics on the 18th day of every other month
Similar Cron Jobs
You might also want to run a crontab:
- every 6 months
- every 3 months
- every 4 months
- every 1 month
- every 5 months
- every 2 months
- every 4 months on day 25 of the month
- every 1 month on day 2 of the month
- every 5 months on day 8 of the month
FUN FACT: Cron is typically used for things like system maintenance tasks, running backups etc..
In this article, you learned how to set up a cron job that runs every 2 months on day 18 of the month. 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.