Question: Just loaded Ubuntu 10.10 and loaded all updates on a hard drive by itself (without Windows). Would like to change the time for the system to shut down automatically from 60 seconds to 5 seconds, thus just hitting the shutdown icon once and in 5 seconds the system would shut down or give me just enough time to hit the restart button if I wanted to restart. Any way to do it??

Answer: 
There is currently no way to do this without editing and compiling the source code. You can, however, shut down immediately through the CLI using the command `sudo shutdown -h now`.
Open dialogs:

`Ctrl` + `Alt` + `Del` → `/usr/lib/indicator-session/gtk-logout-helper --logout`

`/usr/lib/indicator-session/gtk-logout-helper --shutdown`

`/usr/lib/indicator-session/gtk-logout-helper --restart`

Create your own Shortcuts, e.g. `Ctrl` + `Alt` + `End` for shutdown.

Source: [ubuntuusers.de](http://forum.ubuntuusers.de/post/3958927/)