Can't run programs as sudo via keyboard shortcuts in Openbox in Fedora 19

hellomynameisphil · 07-28-2013, 06:58 PM

I have the following script called pwrmenu:

Code:

#!/bin/sh

OPTION=$(echo -e 'hibernate\nsuspend\nreboot\nshutdown' | dmenu "$@")

case $OPTION in
hibernate)
        sudo /bin/systemctl hibernate
        ;;
suspend)
        sudo /bin/systemctl suspend
        ;;
reboot)
        sudo /bin/systemctl reboot
        ;;
shutdown)
        sudo /bin/systemctl poweroff
        ;;
*)
        echo "whuh?"
        exit 1
        ;;
esac

I am a member of the 'power' group which I created:

Code:

 ~  > groups
phil wheel audio jackuser power

As per visudo, members of the 'power' group can run power management commands via sudo with no password:

Code:

[...]
Cmnd_Alias POWER = /bin/systemctl hibernate, /bin/systemctl reboot, /bin/systemctl suspend, /bin/systemctl poweroff
[...]
%power  ALL=(ALL) NOPASSWD: POWER
[...]

Running, e.g., 'sudo /bin/systemctl hibernate' from a terminal hibernates the machine with no password. Running pwrmenu (the script above) from a terminal allows me to manage power with no password.

But in my Openbox config, I have the following:

Code:

[...]
    <keybind key="W-p">
      <action name="Execute">
        <command>/home/phil/bin/pwrmenu -b -fn '-*-clean-medium-r-*-*-16-*-*-*-*-*-*-*' -nb '#000000' -nf '#0088ff' -sb '#0088ff' -sf '#000000'</command>
      </action>
    </keybind>
[...]

When I hit Win+p, the pwrmenu comes up, but none of the options actually do anything; the computer's power state does not change. How could I have it so that I can use the script above to change the computer's power state?

qlue · 07-29-2013, 11:48 AM

You can't run sudo commands from a script that you call from the gui like this. You can use gksu instead if you've installed it. But I suspect it won't work as you expect it to.

flyinggeorge · 08-01-2013, 04:20 AM

If you have gksu, it is possible to call scripts with gksu or gksudo to launch with elevated privileges. The gksudo command prompts the user for their password and they must be in the sudoers file. Alternatively, if your user is in the sudoers file, you should be able to set that command to run with sudo and not require a password.

Read this for more information:

http://askubuntu.com/questions/15900...out-a-password

Hopefully this helps.

moo-cow · 08-01-2013, 06:16 AM

Try removing the four instances of "sudo" in your pwrmenu script and call the script itself with sudo:

Code:

sudo /home/phil/bin/pwrmenu -b -fn ... # etc.

Does that work? If not, try redirecting stderr to a file to see if there are any error messages:

Code:

sudo /home/phil/bin/pwrmenu -b -fn ... 2> /home/phil/error.log