How to enable and disable automatic login on Ubuntu Linux via the GUI and CLI

What you'll learn:
1. How to enable automatic login for your Linux device
2. How to disable the sign-in screen
3. How to open up the Users settings window
4. How to fix disable automatic logon grayed out
5. How to change the user settings
6. How to be able to switch on the Automatic login
7. How to enable or disable the automatic login in Ubuntu Linux via the command line
8. How to launch the Terminal through the Application Launcher
10. How to disable automatic login for the user