There are many alternatives to Index Your Files for Linux if you are looking for a replacement. The best Linux alternative is DocFetcher, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Index Your Files and seven of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Index Your Files are FSearch (Free, Open Source), Recoll (Free, Open Source), GCstar (Free, Open Source) and Search Monkey (Free, Open Source).
DocFetcher is a portable German/English open source desktop search application. It allows you search the contents of documents on your computer. - You can think of it as Google for your local document repository.
This package is a personal full text search package which is based on a very strong backend (Xapian), for which it provides an easy to use and feature-rich interface. A small fee is required for downloading and using the Windows binary version.
GCstar is a free open source application for managing your collections. Detailed information on each item can be automatically retrieved from the internet and you can store additional data, such as the location or who you've lent it to.