Location of player prefs in Linux

Hi all,

Apologies if this has already been asked and answered before (happy to accept a link to a previous answer as an answer) but does anyone know where the player prefs for a standalone game live on Linux? Specifically on Ubuntu. The script reference hasn't been updated with details of it's location:

http://docs.unity3d.com/Documentation/ScriptReference/PlayerPrefs.html

Thanks, Mark