How can I shut down or reboot Ubuntu using terminal commands?
-
Related (but not a duplicate): Shutting down the system using a virtual console– Eliah KaganCommented Oct 16, 2017 at 9:12
Add a comment
|
5 Answers
For shutdown:
sudo poweroff
For restart:
sudo reboot
Appendix: If your keyboard is "locked up", so you can't enter a command like "reboot" which would run from "su" anyway, use the keyboard: hold down Alt + PrintScreen/SysRq, buttons and type "REISUB". It doesn't have to be capital letters. It will restart your computer gently. http://blog.kember.net/articles/reisub-the-gentle-linux-restart/
answered Sep 12, 2012 at 18:17
-
18
-
3On Armbian, just
rebootis not found. instead,/sbin/rebootworks. Commented Dec 19, 2016 at 14:28 -
1@MarkJeronimus It depends on your
PATHvariable, and yourSECURE_PATHin the/etc/sudoersfile.– WillCommented Mar 12, 2017 at 10:25 -
8
-
1@NicolasRaoul nopes, for me i see this without
sudo.Failed to set wall message, ignoring: Interactive authentication required. Failed to reboot system via logind: Interactive authentication required. Failed to open /dev/initctl: Permission denied Failed to talk to init daemon.Commented Jul 15, 2019 at 17:30
Open your terminal with CTRL+ALT+T and do these following commands
To shutdown the system:
sudo shutdown -h now
To restart:
sudo reboot
& one more command for restart:
sudo shutdown -r now
Another way as one of the user mentioned.
For shutdown:
sudo halt
or:
sudo init 0
For restart:
sudo init 6
You can get more info on the shutdown command by using one of the following:
shutdown --helpman shutdown
-
@jai the target is to offer the op and everyone else alternative ways of doing what he has asked. Commented Apr 23, 2013 at 15:21
-
2It seems
shutdown -r nowis preferable torebootas the second can put you into maintenance mode Commented May 11, 2014 at 11:44 -
2FYI What is the difference between the shutdown, halt and reboot commands? Commented Mar 8, 2017 at 20:52
-
Can anyone explain why
sudo haltmight not perform shutdown in some cases, whereassudo halt -pdoes?– Hee JinCommented Apr 11, 2018 at 23:48
Hate passwords (sudo) and love one-liners?
For Ubuntu 15.04 and later
This is due to Ubuntu's shift in using systemd instead of Upstart
systemctl poweroff
systemctl reboot
systemctl suspend
systemctl hibernate
systemctl hybrid-sleep
Since hibernate is normally disabled by default in Ubuntu systems, you can enable this by checking this answer.
For Ubuntu 14.10 or earlier
Shutdown:
/usr/bin/dbus-send --system --print-reply --dest="org.freedesktop.ConsoleKit" /org/freedesktop/ConsoleKit/Manager org.freedesktop.ConsoleKit.Manager.Stop
Restart:
/usr/bin/dbus-send --system --print-reply --dest="org.freedesktop.ConsoleKit" /org/freedesktop/ConsoleKit/Manager org.freedesktop.ConsoleKit.Manager.Restart
Other commands you may like:
Suspend:
/usr/bin/dbus-send --system --print-reply --dest="org.freedesktop.UPower" /org/freedesktop/UPower org.freedesktop.UPower.Suspend
Hibernate: (if enabled on your system)
/usr/bin/dbus-send --system --print-reply --dest="org.freedesktop.UPower" /org/freedesktop/UPower org.freedesktop.UPower.Hibernate
-
21I always wondered how the GUI shutdown the system without needing sudo. I assume this is it. Commented Jul 28, 2015 at 14:23
-
-
answered Jun 15, 2016 at 10:17
-
3
Failed to set wall message, ignoring: Interactive authentication required.from ssh– kybCommented Sep 6, 2018 at 20:11
Use
sudo shutdown -h (time) (message)
This will shutdown your computer and halt it. That is what the -h is for. Then, in the time area you can choose the shutdown delay (in minutes) and if you want you can send a broadcast message in the message area (like goodbye, or I'm shutting the thing down :P).
To restart the computer, type
sudo shutdown -r (time) (message)
Now, instead of shutting it down and halting it, you will restart your computer once it's shutdown. :)
-
1What do mean by, "This will shutdown your computer and halt it. That is what the -h"? What is the difference if we only use "shutdown" or "poweroff" command? What is so special about "halt"!?– PranavCommented May 25, 2020 at 16:50