how to restart by using terminal?

[varunreddy]

where can i get unix tutorials that explain with tecniques ?

[Banfa]

use the command

reboot

[vipin sharma]

To reboot:
1) reboot
2) reboot -f

Second command will immediately restart your system.

[anurag275125]

There are three ways to reboot Linux system from console---
1. # shutdown -r <minutes>
The system will restart after <minutes>
2. reboot
This will immediately restart the computer
3. Type init 6 at console
There are 6 run-levels in init process which defines the state of the computer. Run-level 6 is the restart mode.

You can only use these techniques when logged in as root.

[Time]

hi ppl,
I tried all the commands above:
reboot
reboot -f
shutdown -1
i got the message that i need to be root
after that i wrote the command root as i had installed it several days ago
by sudo api-get install root
but all the three commands gave the output:

respective command name not defined in current scope(tmpfile): 1:.
(const int)(-1)

Do i need to make some changes in my root?
I get following message whenever i write root:

*
* W E L C O M E to R O O T *
* *
* Version 5.18/00b 10 March 2008 *
* *
* You are welcome to visit our Web site *
* http://root.cern.ch *
* *
*************** *************** *************

ROOT 5.18/00b (branches/v5-18-00-patches@22563, Mar 20 2009, 00:44:00 on linux)

CINT/ROOT C/C++ Interpreter version 5.16.29, Jan 08, 2008
Type ? for help. Commands must be C++ statements.
Enclose multiple statements between { }.

[Banfa]

Did you try

sudo reboot

?

On Ubuntu (and similar distros) needing to be root doesn't mean downloading additional software as root is a built in user of the system. It means using sudo; super user do root being the ultimate super user.

[Time]

Yeah, sudo reboot is working.
Thanks a lot.