If it's your home system and especial security is unimportant you can try next: chmod +s /sbin/halt and use /sbin/halt to achieve the same effect.
You can use ACPI power button event (see /etc/acpi/events/default and uncomment appropriate line). Also there was method with dbus (searching the web will give suggestions). 2014-03-10 22:15 GMT+02:00 Jarry <[email protected]>: > Hi, > how can I allow other (not-root) users to shut down system? > > I tried to add them to /etc/shutdown.allow but it works only > for "Ctrl-Alt-Del". When they try shutdown per command line > (/sbin/shutdown -a -h now) they still get: > > shutdown: you must be root to do that! > Usage: ... > > Is there any way to achieve this without installing sudo? > > Jarry > -- > _______________________________________________________________ > This mailbox accepts e-mails only from selected mailing-lists! > Everything else is considered to be spam and therefore deleted. > > -- Regards, Nikita

