How do I shut down or reboot from a terminal?
For shutdown:
sudo poweroff
For restart:
sudo reboot
Appendix: If your keyword is "lockup" 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/
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 --help
man shutdown
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
On 16.04 no need of sudo
To shutdown/poweroff:
poweroff
To reboot:
reboot