Usage: zck [OPTION...] <file>
zck - Create a new zchunk file

  -D, --dict=FILE            Set zstd compression dictionary to FILE
  -h, --chunk-hash-type=HASH Set hash type to one of sha256, sha512,
                             sha512_128
  -m, --manual-chunk         Don't do any automatic chunking (implies -s)
  -o, --output=FILE          Output to specified FILE
  -s, --split=STRING         Split chunks at beginning of STRING
  -u, --uncompressed         Add extension in header for uncompressed data
      --compression-format=none/zstd
                             Set compression format for file (none/zstd)
                             (default: zstd)
  -v, --verbose              Increase verbosity (can be specified more than
                             once for debugging)
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Show program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.