Difference between revisions of "Allow users to shutdown"

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m (Using sudo: format)
m (Using sudo: /usr/bin merger)
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Then, as root, add the following to the end of {{ic|/etc/sudoers}} using the {{Ic|visudo}} command. Substitute {{Ic|'''user'''}} for your username and {{Ic|'''hostname'''}} for the machine's hostname.
 
Then, as root, add the following to the end of {{ic|/etc/sudoers}} using the {{Ic|visudo}} command. Substitute {{Ic|'''user'''}} for your username and {{Ic|'''hostname'''}} for the machine's hostname.
  
  '''user''' '''hostname''' =NOPASSWD: /sbin/shutdown -h now,/sbin/halt,/sbin/poweroff,/sbin/reboot
+
  '''user''' '''hostname''' =NOPASSWD: /usr/bin/shutdown -h now,/usr/bin/halt,/usr/bin/poweroff,/usr/bin/reboot
  
 
Now your user can shutdown with {{Ic|sudo shutdown -h now}}, and reboot with {{Ic|sudo reboot}}. Users wishing to power down a system can also use {{Ic|poweroff}} or {{Ic|halt}}. Use the {{ic|NOPASSWD:}} tag only if you do not want to be prompted for your password.
 
Now your user can shutdown with {{Ic|sudo shutdown -h now}}, and reboot with {{Ic|sudo reboot}}. Users wishing to power down a system can also use {{Ic|poweroff}} or {{Ic|halt}}. Use the {{ic|NOPASSWD:}} tag only if you do not want to be prompted for your password.

Revision as of 21:29, 23 June 2013

Using systemd-logind

If you're using systemd (which is default in Arch Linux), users with non-remote session can issue power-related commands as long as polkit is installed and the session is not broken.

To shutdown:

# systemctl poweroff

The suspend, poweroff and hibernate button presses and lid close events are also handled by logind (see man logind.conf.

Using sudo

First install sudo:

# pacman -S sudo

Then, as root, add the following to the end of /etc/sudoers using the visudo command. Substitute user for your username and hostname for the machine's hostname.

user hostname =NOPASSWD: /usr/bin/shutdown -h now,/usr/bin/halt,/usr/bin/poweroff,/usr/bin/reboot

Now your user can shutdown with sudo shutdown -h now, and reboot with sudo reboot. Users wishing to power down a system can also use poweroff or halt. Use the NOPASSWD: tag only if you do not want to be prompted for your password.

For convenience, you can add these aliases to your user's ~/.bashrc if you have it enabled (or to /etc/bash.bashrc for system-wide settings):

alias reboot="sudo reboot"
alias poweroff="sudo poweroff"
alias halt="sudo halt"

Using acpid

acpid can be used to allow anyone with physical access to cleanly shut down the computer by using this power button.