coreutils: b2sum invocation
6.5 ‘b2sum’: Print or check BLAKE2 digests
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‘b2sum’ computes a 512-bit checksum for each specified FILE.
If a FILE is specified as ‘-’ or if no files are given ‘b2sum’
computes the checksum for the standard input. ‘b2sum’ can also
determine whether a file and checksum are consistent. Synopsis:
b2sum [OPTION]... [FILE]...
‘b2sum’ uses the ‘Untagged output format’ for each specified file, as
described at ⇒cksum output modes.
DONTPRINTYET The program accepts ⇒cksum common options. Also see *noteDONTPRINTYET The program accepts ⇒cksum common options. Also see ⇒
Common options.
In addition ‘b2sum’ supports the following options.
‘-l’
‘--length’
Change (shorten) the default digest length. This is specified in
bits and thus must be a multiple of 8. This option is ignored when
‘--check’ is specified, as the length is automatically determined
when checking.