The cPanel was introduced in-browser terminal application which provides direct command-line access. The access to the terminal is based on the users. As we are accessing the terminal from the WHM we are logging to the command line as a root user. It can be much faster to complete some tasks using a Terminal than with graphical applications and menus. It can be used to operate the server from the commands, installing new softwares and many more.
Access the terminal From the WHM Root User:
Login in your WHM As a Root User and navigate in Server Configuration
In that section, you will find the option with Name Terminal .
While Click on Terminal, It will show you the warning. Proceed with Click by "I agree"