join-into-groups-of - join input words into N-word groups

join-into-groups-of  is  a Unix-style filter that splits its input into groups of N words (the last group
       possibly being partial) with each group appearing on its own line and delimited internally by commas.

NCBI                                               2021-03-07                             JOIN-INTO-GROUPS-OF(1)

       join-into-groups-of - join input words into N-word groups

join-into-groups-ofN