A file search tool using different backends which is configurable via the command line. Catfish is a handy file searching tool for linux and unix. Basically it is a frontend for different search engines (daemons) which provides a unified interface. The interface is intentionally lightweight and simple, using only Gtk+2. You can configure it to your needs by using several command line options.
Supported backends are currently find, (s)locate, doodle, tracker and beagle.