The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 15 */9 * *
This cron command translates to the following (in Human-Readable format):
“Every 9 days at 3:00 pm.”
What is a Cron Job & Crontab?
A cron job is a time-based task that is set to run at a specific time or interval. This can be used to automate tasks such as running backups, sending emails, or running system maintenance scripts.
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 9 days at 3:00 pm“:
FUN FACT: If you want to edit your personal crontab, just type: “crontab -e” at the command prompt..
You might want to set up a crontab or cron job to run every 9 days at 3:00 pm for several reasons, including:
- A cron job to update a weather forecast every 9 days
- A cron job to send out a reminder email every 9 days
- A cron job to check for updates to a software application every 9 days
Similar Cron Jobs
You might also want to run a crontab:
- every 3 days
- every 1 day
- every 4 days
- every 5 days
- every 10 days
- every 6 days
- every 7 days at 3:00 pm
- every 3 days at 5:30 pm
- every 9 days at 1:30 am
FUN FACT: If you need to delete a cron job, simply remove the corresponding line from the crontab file and save your changes..
In this article, you learned how to set up a cron job that runs every 9 days at 3:00 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.