• aux2bib, a perl script which will take an .aux file and make a portable .bib file to go with it;
• bibify, a shell script that will optimise away one pass of the LaTeX/BibTeX cycle, in some cases
• bibkey, a shell script that finds entries whose “keyword” field matches the given keys (uses sed and awk);
• cleantex, a shell script to tidy up after a LaTeX run;
• looktex, a shell script to list entries that match a given regexp;
• makebib, a shell script to make an exportable .bib file from an existing (set of) .bib file(s) and an optional set of citations (uses sed)
• printbib, a shell script to make a dvi file from a .bib file, sorted by cite key, and including fields like “keyword”, “abstract”, and “comment”.
• bib2html, a perl script that makes a browsable HTML version of a bibliography (several .bst files are supplied); and
• citekeys, a shell script that lists the citation keys of a .bib file.

The authors are David Kotz and Daniel Gildea.