THE COMMAND LINE

Start a terminal screen window from your desktop manager. This will show the username and computer name, and will end with an $ character. and use this text editor to practise reading, writing, and modifying files. Now exit via Ctrl+X. Enter su, followed by the root password. The cursor will then terminate with a # character. Be very careful! You will now have root access and will be able to modify many of the critical system files. To exit the root terminal enter exit. The cursor will then again terminate with $. Another exit will terminate the terminal screen.