I would like to create a small script that installs a few truetype fonts on the user's system. On my Ubuntu machine the truetype fonts are located at /usr/share/fonts/truetype. However, I'm not sure if this location is the same on all machines. Is there a way to find out where truetypes fonts are stored on any Linux system?

Update
After some research I found that the path usr/share/fonts/truetype is specified in the XML file /etc/fonts/fonts.conf. It's an XML file, so I can use XPath to get the dir:

xpath -q -e 'fontconfig/dir[1]/text()[1]' /etc/fonts/fonts.conf

I don't know however if this file will exist on all (or most) Linux systems.