CentOS 7 Crontab: Setup & Manage Tasks

In CentOS 7, you can use the crontab command to set and manage scheduled tasks. Here are some common actions:

1. View the list of scheduled tasks for the current user.

crontab -l

1. Edit the current user’s scheduled tasks list:

crontab -e

This will open a text editor where you can add, modify, or delete scheduled tasks. The format for scheduled tasks is: minute hour day month week command to be executed.

1. Delete the current user’s list of scheduled tasks:

crontab -r

1. View the scheduled task list of all users in the system.

ls /var/spool/cron/

1. Edit the scheduled task list of other users.

crontab -u username -e

The username is the name of the user that needs to be edited.

1. 重启cron服务：

systemctl restart crond

By following the above steps, you can easily set up and manage scheduled tasks.