citetags
extracts BibTeX citation tags from a LaTeX source file or
.aux
file and sends them to
stdout,
possibly for later input to
citefind(1).
citetags
and
citefind(1)
can be used to extract from a large BibTeX
bibliography data base just those bibliography
entries that are actually used in a particular
document, perhaps for submission to a publisher,
or distribution in electronic form.