-b

read in binary mode

-c

read BLAKE2 sums from the FILEs and check them

-l

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

read in text mode (default)The following five options are useful only when verifying checksums:

--ignore-missing

don't fail or report status for missing files

--quiet

don't print OK for each successfully verified file

--status

don't output anything, status code shows success

--strict

exit non-zero for improperly formatted checksum lines

-w

warn about improperly formatted checksum lines

--help

display this help and exit

--version

output version information and exitThe sums are computed as described in RFC 7693. When checking, the input should be a former output of this program. The defaultmode is to print a line with checksum, a space, a character indicating input mode ('*' for binary, ' ' for text or where binary isinsignificant), and name for each FILE.AUTHORWritten by Padraig Brady and Samuel Neves.REPORTING BUGSGNU coreutils online help: <http://www.gnu.org/software/coreutils/>Report b2sum translation bugs to <http://translationproject.org/team/>COPYRIGHTCopyright © 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.