xml2marc - convert LC SlimSchema XML to MARC21

       xml2marc is a command line utility for converting XML that uses the Library of Congress Slim Schema to
       MARC21 bibliographic data. Conversion is handled using the MARC::Record and MARC::File::XML packages.

perl v5.32.1                                       2022-01-20                                       XML2MARC(1p)

       xml2marc - convert LC SlimSchema XML to MARC21

           # convert a file
           % xml2marc marc.xml > marc.dat.

           # or use in a pipeline
           % cat marc.xml | xml2marc > marc.dat