I have 20,000 pdf files in a directory tree. I need to search through them, fast. It could be a GUI program running under Windows, or a command line interface running under Windows or Cygwin (or even a Java or Ruby library). The catch is, it needs to implement indexing. (Or I need a quick shell script to implement indexing and another one to search through the index).
Adobe Reader would work great, only is there any way to allow for indexing?
EDIT: I found an answer that works for my 64 bit Windows 7: http://www.documentsnap.com/how-to-fix-pdf-search-in-windows-7-64-bit/
Still, my question about shell script still stands.