cif_cod_check(1) on Linux
The text b6bae8a36753, as Debian 11 (Bullseye) shipped it.
parse a CIF file, check if certain data values match COD requirements and IUCr data validation criteria (Version: 2000.06.09, ftp://ftp.iucr.ac.uk/pub/dvntests or ftp://ftp.iucr.org/pub/dvntests)