is the most powerful user on a linux based computer system. It allows you to execute any command that is available to it.
It will even allow you to execute commands that are harmful to your system. For example, you could delete all of the contents of a folder, or important system files by accident.
It is very important that you be careful when using theuser.
The best option is to type("super-user do... ") at the start of individual commands you want to run as root, for example .
There are several ways to become the root user on an XO:
- at the terminal shell prompt type and press enter:
% su #
- switch to the console, where the shell is automatically root,
- use a serial port, where the shell is automatically root.
When the process is root, the shell prompt normally ends withrather than . This is the easiest way to check. Other ways are:
- enter the command to check who is logged on.
- enter to check the effective userid rights of the active session, it will be 0 for root.