How to run cron job every minute on Linux/Unix

To run a cron job every minute on a Linux or Unix system, you can use the following steps:

1. Open the crontab file for the user that will run the cron job. You can do this using the crontab -e command. This will open the crontab file in your default text editor.

2. Add a new entry to the crontab file that runs the cron job every minute. The entry should look like this:

* * * * * command

Replace command with the command you want to run. The * characters indicate that the cron job should be run every minute.

3. Save the crontab file and exit the editor.

The cron daemon will automatically run the cron job every minute, according to the schedule specified in the crontab file.

Keep in mind that running a cron job every minute can put a significant load on the system, and may interfere with other processes. It is important to carefully consider the implications of running a cron job this frequently before setting up the schedule.

You can also use the @reboot directive to run a cron job when the system is rebooted. For example:

@reboot command

This will run the specified command when the system is rebooted.

You can also use the @hourly, @daily, @weekly, and @monthly directives to run a cron job at specific intervals. For example:

@hourly command

This will run the specified command every hour.

@daily command

This will run the specified command every day.

@weekly command

This will run the specified command every week.

@monthly command

This will run the specified command every month.