Grepius is a set of several simple scripts, acting together as an improvised desktop search utility based on the good old grep command.
Edit and then execute 'context' shell script if you want your search word(s) displayed in terminal within their context.
Edit and then execute 'filelist' shell script if you want your search results displayed in a browser as a hyperlinked list of files.
Edit and then execute 'cnvpdf' shell script if you want to make .pdf.txt files from .pdf files in order to search within their contents. You need 'pdftotext' utility.
Documentation is missing and the author is to be blamed... But the scripts were usefull for me and probably will help others too.