The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 0 30 */2 *
This cron command translates to the following (in Human-Readable format):
“Every 2 months on day 30 of the month.”
What is a Cron Job & Crontab?
A cron job is a scheduled task that is typically executed by the operating system. Cron jobs are often used to automate repetitive tasks, such as backing up files or checking for updates.
Crontab is a file that contains instructions for the cron daemon, which is a program that executes commands at specified intervals. Crontab files are typically edited with the crontab command, which allows users to create, edit, and delete their own crontab files.
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 30 of the month“:
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)..
You might want to set up a crontab or cron job to run every 2 months on day 30 of the month for several reasons, including:
- Checking the validity of SSL/TLS certificates
- Running system maintenance tasks, such as log rotation
- Sending out monthly newsletters
- Generating reports
Similar Cron Jobs
You might also want to run a crontab:
- every 3 months
- every 6 months
- every 4 months
- every 2 months
- every 1 month
- every 5 months on day 9 of the month
- every 3 months on day 30 of the month
- every 4 months on day 26 of the month
FUN FACT: When configuring a cron job, you can specify the minute, hour, day of the month, month and day of the week when it should run – this gives you a lot of flexibility in terms of when your task will be performed automatically!.
In this article, you learned how to set up a cron job that runs every 2 months on day 30 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 cron job cheat sheet for a list of hundreds of popular cron jobs.