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# Allow Users to Shutdown

From ArchWiki

## 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 check if your session is active

    $ loginctl show-session $XDG_SESSION_ID --property=Active

To shutdown:

    $ systemctl poweroff

The suspend, poweroff and hibernate button presses and lid close events are also handled by logind as described in Power Management#ACPI events.

## 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.

Retrieved from "https://wiki.archlinux.org/index.php?title=Allow_Users_to_Shutdown&oldid=275808"
Category:

- Security

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