word-at-a-time - parse an input file into alphanumeric words

word-at-a-time reads a text file on standard input, extracts all sequences of digits and English letters,
       lowercases any capital letters, and prints the resulting terms in order, one per line.

       word-at-a-time - parse an input file into alphanumeric words

accn-at-a-time(1), filter-stop-words(1), join-into-groups-of(1), phrase-search(1).

NCBI                                               2023-02-12                                  WORD-AT-A-TIME(1)

word-at-a-time