Depending on your desktop environment and its configuration, you may be able to activate this shortcut by pressing Ctrl+Alt+Esc. You could also just run the xkill command — you could open a Terminal window, type xkill without the quotes, and press Enter.

How do you exit a program in Linux?

if you do ctrl-z and then type exit it will close background applications. Ctrl+Q is another good way to kill the application. If you don’t have control of your shell, simply hitting ctrl + C should stop the process.

How do I stop a program from running in terminal?

Use Ctrl + Break key combo.