Recoll is a personal full text search tool for Unix/Linux.

It is based on the very strong Xapian back-end, for which it provides a feature-rich yet easy to use front-end with a Qt graphical interface.

Recoll is free, open source, and licensed under the GPL. The current version is 1.13.04 (Changes).

Features:

Easy installation, few dependancies. No database daemon, web server, desktop environment or exotic language necessary.
Will run on most Unix-based systems
Qt-based GUI. Can use either Qt 3 or Qt 4.
Searches most common document types, emails and their attachments.
Powerful query facilities, with boolean searches, phrases, proximity, wildcards, filter on file types and directory tree.
Multi-language and multi-character set with Unicode based internals.
(more detail)

Recoll user ? Maybe there are still a few useful tricks that you don't know about. A quick look at the search tips might prove useful !

News:

2010-09-18 : Recoll 1.14.0 is out. The main new feature is the use of document dates in searches, buf there are a few others too. As usual with a .0 release, there may be rough edges, the binary packages will follow when a few brave souls will have tried it and I hear of no major issues. If you are currently indexing audio file tags, you need to look at the changes file, the supporting application changed.
2010-04-14 : Recoll 1.13.04 is out. It fixes a nasty bug (broken stemming) in 1.13.02.
2010-01-29 : the full Recoll source repository is now hosted on Bitbucket, along with a Wiki and an issues tracking system. Hopefully, this new channel for reporting bugs and make suggestions will increase the feedback rate...

Support

If you have any problem with Recoll, or a suggestion for improvement, please provide feedback. There are three possible channels, depending on your preferences:

The issues tracking system on Bitbucket.
The recoll-user mailing list.
Direct email.

Mailing list information:

You can also have a look at the development page for things you could do.

The list of known bugs is here

Thanks

We borrow a lot of code from other packages, and welcome code and ideas from contributors, see the Credits.