Recoll is a personal full text search tool for Unix/Linux.
It is based on the very strong Xapian backend, for which it provides an 
easy to use, feature-rich, easy administration, QT graphical interface. 
Recoll is able to include several separate folders in its search.

To enable splitting of CamelCase words take a look in the SlackBuild
file. This feature is disabled by default.

antiword, unrtf, untex and exiftool are runtime dependencies. You can
build and run recoll without it, but recoll will keep nagging you about
the missing helper tools. Without those tools recoll will be not usable
for most people anyway, and these tools are quite small. But if you want
to go without any of them you can do so at the time of writing. Your
mileage may vary of course in the future.