Package BibTool

A Tool for manipulating BibTeX data bases

http://www.gerd-neugebauer.de/software/TeX/BibTool/

BibTeX provides an easy to use means to integrate citations and
bibliographies into LaTeX documents. But the user is left alone with
the management of the BibTeX files. The program BibTool is intended to
fill this gap. BibTool allows the manipulation of BibTeX files which
goes beyond the possibilities --- and intentions --- of BibTeX.

General Commands (Section 1)
bibtool
This manual is not meant to be exhaustive. The complete documentation for BibTool can be found in the BibTool Manual. BibTeX provides an easy to use means to...