The Cron Job/Crontab
To have your task run at this frequency, use the following cron:
0 18-20 * * *
This cron command translates to the following (in Human-Readable format):
“Every hour between 6:00 pm and 8:00 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 jobs are typically used for automating tasks, such as running backups or sending emails.
A crontab is a file containing commands and instructions for the cron daemon to execute. The crontab is used to schedule jobs (commands or shell scripts) to run periodically at certain times or dates.
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every hour between 6:00 pm and 8:00 pm“:
FUN FACT: If you want to see what commands are scheduled in your crontab, type: “crontab -l”.
You might want to set up a crontab or cron job to run every hour between 6:00 pm and 8:00 pm for several reasons, including:
- Update a website’s front page with the day’s news
- Generate a report of daily sales
- Send out nightly email notifications to subscribers
- Fetch new data from an external API
Similar Cron Jobs
You might also want to run a crontab:
- every 10 hours
- every 12 hours
- every 2 hours
- every 5 hours
- every 11 hours
- every 6 hours at 20 minutes past the hour
- every hour between 1:00 am and 7:00 am
- every hour between 1:00 pm and 7:00 pm
FUN FACT: Cron jobs are often used to perform regular maintenance tasks, such as running backups or sending out reports..
In this article, you learned how to set up a cron job that runs every hour between 6:00 pm and 8:00 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.