Provided by: coreutils_8.32-4.1ubuntu1_amd64 bug


       b2sum - compute and check BLAKE2 message digest


       b2sum [OPTION]... [FILE]...


       Print or check BLAKE2 (512-bit) checksums.

       With no FILE, or when FILE is -, read standard input.

       -b, --binary
              read in binary mode

       -c, --check
              read BLAKE2 sums from the FILEs and check them

       -l, --length
              digest  length  in  bits;  must not exceed the maximum for the blake2 algorithm and
              must be a multiple of 8

       --tag  create a BSD-style checksum

       -t, --text
              read in text mode (default)

       -z, --zero
              end each output line with NUL, not newline, and disable file name escaping

   The following five options are useful only when verifying checksums:
              don't fail or report status for missing files

              don't print OK for each successfully verified file

              don't output anything, status code shows success

              exit non-zero for improperly formatted checksum lines

       -w, --warn
              warn about improperly formatted checksum lines

       --help display this help and exit

              output version information and exit

       The sums are computed as described in RFC 7693.  When checking,  the  input  should  be  a
       former  output  of  this  program.   The  default mode is to print a line with checksum, a
       space, a character indicating input mode ('*' for binary, ' ' for text or where binary  is
       insignificant), and name for each FILE.

       Note: There is no difference between binary mode and text mode on GNU systems.


       Written by Padraig Brady and Samuel Neves.


       GNU coreutils online help: <>
       Report any translation bugs to <>


       Copyright  ©  2020  Free  Software  Foundation, Inc.  License GPLv3+: GNU GPL version 3 or
       later <>.
       This is free software: you are free to change and redistribute it.  There is NO  WARRANTY,
       to the extent permitted by law.


       Full documentation <>
       or available locally via: info '(coreutils) b2sum invocation'