Root (user)
From SynCE-Wiki
The user, root, is a super user in every *nix machine.
If some of the instructions on this site ask you to execute something as root, there are two ways to do this:
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sudo
sudo executes one command as the super-user. It should be used like this (replace COMMAND with the command that you were instructed to run as root):
sudo COMMAND
You may be prompted for your password.
If you don't use or understand sudo you must use su:
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su
su starts a shell as the super-user. In some distributions this isn't supported at all (E.g. Ubuntu) and sudo should be used. To use su on a command, execute these commands (replace COMMAND with the command that you were instructed to run as root):
su (enter root password) COMMAND exit
Exiting the super-user shell is highly recommended.
