How do I change my username in Linux Mint? Type the command “usermod -l new_user login” to change the user name for an account. Replace “new_user” with the new username for the account. Replace “login” with the current username for the account.
How do I change my password in Linux Mint XFCE?
How do I log off Ubuntu? To log out from Ubuntu desktop session, go to the top right corner and click to bring the system tray. You should see Power Off / Log Out option. Click on it and it will show the Log Out option. When you click on the Log Out button, it will open a dialogue box and ask for your conformation.
How do I login as root in Ubuntu? Open a terminal Window/App. Press Ctrl + Alt + T to open the terminal on Ubuntu. When promoted provide your own password. After successful login, the $ prompt would change to # to indicate that you logged in as root user on Ubuntu.