11 - Ubuntu Tutorial - superuser, administrator user, sudo, su
11 - Ubuntu Tutorial -The Linux command line for beginners - superuser, administrator user, sudo, su
What is superuser?
superuser is a user with super powers.
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in older systems it was a real user,
with a real username "root"
root can do anything:
root can modify or delete any file
root can rewrite firewall rules
root can start network services
root can shutdown the machine
and so on ...
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What is the difference between su and sudo
su vs. sudo
su = 'superuser': allows you to change to another user on the machine without having to log out and in again.
sudo: switch user and do this command
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for example when we want to isntall a software
for example ffmpeg
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create a user as administrator