The super user (or administrator) usually is called
root and has a user id of 0. You can check that by entering
id root. This will show information about a user called
In order to become a super user, you can simply log on using the user
root, if it is allowed. So where ever you initially are asked for a login and password, enter
root and its password.
Usually, however, root login is disabled. In this case, a user uses
sudo to run a program as root.
sudo bash will open a root shell (bash) for you. But this only works if you are allowed to use
sudo. Usually, this is the case if you are in the
You can check the groups you are member of by simply using
How the prompt looks like totally depends on the user settings in
.bashrc. By default,
$ is an ordinary user and
# an administrator.