The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
* 3-21 * * *
This cron command translates to the following (in Human-Readable format):
“Every minute between 3:00 am and 9:00 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 allows tasks to be automatically run in the background at regular intervals. These tasks are often called “cron jobs.”
A crontab is a table or list of commands that are scheduled to run at specified times. The commands in a crontab file (also called a “cron table”) are normally executed by the cron daemon, which runs in the background and executes these commands automatically.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every minute between 3:00 am and 9:00 pm“:
FUN FACT: The most common way to edit cron jobs is using the crontab command – this stands for “cron table,” and it contains all the information about when your tasks should be executed..
You might want to set up a crontab or cron job to run every minute between 3:00 am and 9:00 pm for several reasons, including:
- Sending a daily digest of new content to subscribers of a website
- Aggregating data from various sources for further analysis
- Generating reports based on aggregated data
- Triggering other processes based on the results of the reports
Similar Cron Jobs
You might also want to run a crontab:
- every 2 minutes
- every 22 minutes
- every 29 minutes
- every 10 minutes
- every minute between 2:00 am and 5:00 pm
- every minute between 11:00 am and 10:00 pm
FUN FACT: Cron jobs are automated processes that run on a schedule..
In this article, you learned how to set up a cron job that runs every minute between 3:00 am and 9:00 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.