bibfind – Prints entries in your bib file that match search string
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 entry (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.
Perl Artistic License
utility for managing BibTeX files