Logout, Reboot and Shutdown Linux Fedora Core operating system.

   On the Linux Fedora Core system. the procedure of logging out, shutting down and reboot can be done using command or using the graphical screen.  The article below show the process of logging out, shutdown and reboot using the graphical and using the command line, if you cannot execute the command or cannot shutting down the system, you may be do not have enough privilege on the system to do the task.

Logging Out from Linux Operating System.

If you want to end session on Linux system you need to logout, shutdown or reboot the system.

In order logging out, shutdown or reboot from the Linux system properly:

• Save your work

• Close all your currently running or active process

• Then you can choose to logout shutdown or reboot your Linux system.

To exit or end (log out) the shell terminal session, you can use one of the command below:

• the exit command,

[root@linux fedora]# exit

• or you can log out by key in logout command on the shell prompt,

[root@linux fedora]# logout

•  or by pressing Ctrl+D key at the same time on the shell prompt that you wish to log out from..

After you issue one of the command above, the on screen will clear and you should see the Linux login prompt be redisplay.

*example on Linux Fedora Core 4 text base login screen*

To logout from the Linux system on the x window environment you should:

• find and click on the log out button

• The logout menu should appear after you click on the logout button.

   On this log out menu you can choose to Log out, Shutdown or you can Restart the computer by clicking the radio button on the Action menu. Then click the OK button to start the process.  Make sure that you click on the Save current setup checkbox if you want to save current setting so that you can get the same environment setup for letter session.

Note:  The Linux logout screenshot above is taken from Fedora Core 4 operating system.  The logout button, setting and procedure may vary base on the Linux distro.

   Without proper power off (shutdown or reboot) the system, your Linux may or can cause disk error.  This can corrupt your entire Linux operating system and can cause massive data lost on your system.  There is proper standard operating procedure you should follow to power off or reboot your Linux system to ensure nothing goes wrong to your data and your Linux system entirely.

Reboot Linux Operating System.

   To reboot the Linux system issue the shutdown command with -r option and now argument (reboot after shutdown) or use reboot command from the shell terminal.

Issue these shutdown command from shell terminal to:

• shutdown -r now command, to reboot the Linux system immediately.

[root@linux fedora]# shutdown -r now

• Issue shutdown -r 20:00 command to reboot your Linux PC at 8 pm:

[root@linux fedora]# shutdown -r 20:00

• Issue shutdown -r +20 command to reboot your Linux PC in 20 minutes:

[root@linux fedora]# shutdown -r +20

• reboot command

[root@linux fedora]# reboot

• To get more help on shutdown command issue shutdown command without any options:

[root@linux fedora]# shutdown

Usage: shutdown [-akrhfnc] [-t secs] time [warning message]

-a: use /etc/shutdown.allow

-k: don't really shutdown, only warn.

-r: reboot after shutdown.

-h: halt after shutdown.

-f: do a 'fast' reboot (skip fsck).

-F: Force fsck on reboot.

-n: do not go through "init" but go down real fast.

-c: cancel a running shutdown.

-t secs: delay between warning and kill signal.

** the "time" argument is mandatory! (try "now") **

• To get more help on reboot command issue reboot --help command:

[root@fedora ~]# reboot --help

usage: reboot [-n] [-w] [-d] [-f] [-i] [-p]

-n: don't sync before rebooting the system

-w: only write a wtmp reboot record and exit.

-d: don't write a wtmp record.

-f: force halt/reboot, don't call shutdown.

-p: power down the system (if possible, otherwise reboot)

If you using the GUI environment, follow the "logout from the Linux system on the x window environment" guide and choose the Restart the computer form the Action menu.

Note: On some Linux system you may need to have the root operator privileges to make the shutdown and reboot command working properly.  Use man command to get details information about shutdown and reboot commands.

Shutdown Linux Operating System.

To shutting down the Linux system issue the shutdown command with -h option and now argument (halt after shutdown) from the shell terminal.

Issue these shutdown command from shell terminal:

• shutdown -h now command,  to shutdown the Linux system immediately:

[root@linux fedora]# shutdown -h now

• Issue shutdown -h 20:00 command to power off your Linux PC at 8 pm:

[root@linux fedora]# shutdown -h 20:00

• Issue shutdown -h +20 command to power off your Linux PC in 20 minutes:

[root@linux fedora]# shutdown -h +20

If you using the GUI environment, follow the "logout from the Linux system on the x window environment" guide and choose the Shut down form the Action menu.

Note: You may need to have the root operator privileges to make the shutdown command working properly.

BACK:  GNU/Linux Fedora Core: Login and Logout

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