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This chapter is from the book Running Commands as the Superuser

Running Commands as the Superuser

When you log in to your computer, the account you use is a normal user account. This account is restricted from performing various system administration tasks. The security model behind Ubuntu has you run as a normal user all the time and dip into the system administrator account only when you need to. This prevents accidental changes or malicious installation of unwanted programs and similar things.

username@computer:~$ sudo /etc/init.d/networking restart
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