How do I change from command line to GUI in Linux?

press Alt + F7 (or repeatedly Alt + Right ) and you will get back to the GUI session.

How do I change the GUI in Linux?

How to Switch Between Desktop Environments. Log out of your Linux desktop after installing another desktop environment. When you see the login screen, click the Session menu and select your preferred desktop environment. You can adjust this option each time you log in to choose your preferred desktop environment.