Bibgrep indexes and efficiently searches BibTex
files. Its usage is similar to the command grep
and the queries use a Google-like syntax. Bibgrep
will create an index for each BibTex file it
touches, and keep the result within
"~/.bibgrep.idx" (by defaults). It watches the
modification date and the size of the original
BibTex file, and will update (and delete) its
index as needed.