What is your favourite backend search tool?

[Rytron]

I know there are frontends such as catfish. But what are your favourite backend search programs?
Some of the ones I know of are: beagle, doodle, pinot, strigi & tracker.

Also what are your favourite frontend search programs?

[bodhi.zazen]

Moved to the cafe as this does not appear to be a support thread.

[FuturePilot]

Tracker.

[juancarlospaco]

Bash

[red_Marvin]

find

[Zoot7]

locate