Bibfind reads your bib file and prints those references that match your search string. It works a bit like grep, only it prints the whole reference (paragraph) and not just the line that matches. The program is useful for quickly checking whether a certain reference is in your database, or what year some guy made that major breakthrough, etc. You can use Perl regexes in your search string and hence wield the awesome power of Perl's pattern matching. The author is Oyvind Breivik.