How to restart Linux PC

[Saman]

You must login as root to reboot the system. Open the terminal and type any one of the following command to reboot the system (following is immediate reboot):

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# /sbin/reboot

OR

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# /sbin/shutdown -r now

You can also use sudo command under Ubuntu Linux:

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$ sudo reboot

It is a good idea to provide notification to all logged-in users that the system is going down and, within the last five minutes of TIME, new logins are prevented. Type the following command:

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# shutdown -r +5

[SukhdeepMankoo]

You can do the same thing using Command

init 6