How to prompt (gui) and use root password on a script?

Question

I would like run a script of mine that need some root privilegies on a gui way.

For example, a simple script could be:

#!/bin/sh
clementine
sudo shutdown -h 00:00

The first line opens the clementine music player (and I don't want root privilegies to open it) and the second will halt the computer on a specific time.

I would like run the script using Alt+F2 and a dialog ask the root password to me when it is needed.

How to do this?

Answer 1

Use kdesudo <Your command>:

#!/bin/sh
clementine
kdesudo "shutdown -h 00:00"