usage: /usr/bin/indxbib [-w] [-c common-words-file] [-d dir] [-f list-file] [-h min-hash-table-size] [-i excluded-fields] [-k max-keys-per-record] [-l min-key-length] [-n threshold] [-o file] [-t max-key-length] [file ...]
usage: /usr/bin/indxbib {-v | --version}
usage: /usr/bin/indxbib --help

GNU indxbib makes an inverted index of the bibliographic databases
in each "file" operand to speed their access by refer(1),
lookbib(1), and lkbib(1).  See the indxbib(1) manual page.