/usr/bin/b2sum

Print or check the BLAKE2b checksums

Usage: b2sum [OPTIONS] [FILE]...

Options:
  -c, --check            read checksums from the FILEs and check them
  -w, --warn             warn about improperly formatted checksum lines
      --status           don't output anything, status code shows success
      --quiet            don't print OK for each successfully verified file
      --ignore-missing   don't fail or report status for missing files
      --strict           exit non-zero for improperly formatted checksum lines
  -l, --length <length>  digest length in bits; must not exceed the max size and must be a multiple
                         of 8 for blake2b; must be 224, 256, 384, or 512 for sha2 or sha3
      --tag              create a BSD style checksum
  -z, --zero             end each output line with NUL, not newline, and disable file name escaping
  -h, --help             Print help
  -V, --version          Print version