Becoming the Superuser
Normal users, for the most part, can modify only the files they own. One special user, called the superuser or root, has full access to the machine and can do anything on it. To become the superuser, log in as yourself and type:
$ su -l
Password: *******
#
You will be prompted for the superuser password (which we presume
you know, if it’s your computer). Your shell prompt will change to a
hash mark (#
) to indicate you are the
superuser. When finished executing commands as the superuser, type
^D
or run exit
to end the superuser shell and become
yourself again.
If you provide a username to su
:
$ su -l sophia
Password: ********
you can become that user (provided you know her password).
Get Linux Pocket Guide, 2nd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.