B2SUM(1) >>>>>>>>>> >>>>>>> B2SUM(1)
>>>>>
b2sum - compute and check BLAKE2 message digest
>>>>
b2sum [>>>>>>]... [>>>>>>>>]...
>>>>
Print or check BLAKE2b (512-bit) checksums. Legacy interface to the
cksum utility.
>>> >>>>>>>>, >>> >>>> >>
>>>>>>>> -, >>>> >>>>>>>>>>
>>>>.
>>>>>>>> >>>>>>>>> >>
>>>> >>>>>> >> >>>>>>>> >
>> >>>>>> >>>>>> >>>>>>.
-b, --binary
>>>> > >>>>>>>> >>>>>>
-c, --check
>>>> >>>> >>>>>>> >>
>>>>>>>> > >>>>>>>>> >>
-l, --length=BITS
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 >>>>>> >>>> >>>>>>> >
>>> >>>>>
-t, --text
>>>> > >>>>>>>>>>>
>>>>>> (>>>>>>>)
-z, --zero
>>>>>>>> >>>>> >>>>>>>
>>> >> >>>>>, >> >>>>>
>>>>> > >>>>>>>>>
>>>>>>>>>> >>>>>>
>>>>>>>>
>>>>>>> >>> >>>>>> >>
>>>>>>> >>>> >>>>>>>>
>>>>>>>>>>> >>>> >>>>>>>:
--ignore-missing
>> >>>>>>> >> > >>
>>>>>>>>> > >>>>> >>
>>>>>>>> >>>>
>>>>>>>>>
--quiet
>> >>>>>>>> > >>>> >>
>>>>> >>>>>>>
>>>>>>>>> >>>>>>>>
--status
>> >>>> >>>>>>> >>>>>,
>>> >>>>> >>>>>>>>>
>>>>>
--strict
>>>>>> >> >>->>>>> >>
>>>>>>>>>> >>>>>>>>>>
>>>>>> >>>> >>>>>>>
-w, --warn
>>>>>>>>> > >>>>>>>>>>
>>>>>>>>>>> >>>>>>>>
>>>> >>>>>>>
--help >>>>>>>>> >>> >>>>> >
>>>>>>
--version
>>>>>>>> >>>>>>> >
>>>>>> > >>>>>>
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.
>> >>>>>>> >>>>>>> >>>>>>
>>>>>>>> > >>>>>>>>>>>
>>>>>> >> >>> >>>>>>>>>.
>>>>>
>>>>>>>> >> >>>>>>>
>>>>>> > >>>>>> >>>>>.
>>>>>>>>>>>> >>>>>>>
>>>>>> >>>>>>>>> >>:
bug-coreutils@gnu.org
>>> coreutils >>>>>>> >>>>>>>>:
>>>>> >>>>> >> >>>>>>>>>
>>> >>>>>>>>:
>>>>>> > >>>>>>>
>>>>>>>>> >>
>>>>>>>> >>>>>
Copyright (C) 2026 Free Software Foundation, Inc. >>>>>>>
>>>>3+: >>> >>> >>>>>> 3 >>>
>>>>>>> .
>>> >> >>>>>>>> >>>>>>>:
>>>>>>>> >>> >> >> >>>>>> >
>>>>>>>>>>>>>. >> >>>>>>>
>>>>>>> >>>>>>>>>, >
>>>>>>>> >>>>>>>>>>
>>>>>>>.
>>>>>> >>>>>>
cksum(1)
>>> >>>>>>>>>>>>> >>
>>>>>> >>
>>> >> >>>>>>>> >>
>>>>>>>> >>>>> >>>>>>> ,,info
'(coreutils) b2sum invocation'"
>>>>>>
>>>>>> >>>>>> >>>
>>>>>>>> >> >>>>>>>>>>>
>>> >>>>>>>>>
>>>> >>>>>> >> >>>>>>>>>
>>>>>>>>>>>>>; >> >>>>>>
>>>>>>>>> >>>>>
>>>>>>>>>> >>> >>>>>
>>>>> >>>>>>> >>>>>>> 3
>>>
>>>>>>. >> >>>>>>>>>>
>>>>>>> >>>>>>>>>>>.
>>> >>>>>>>>> >>>>>> >
>>>>>>> >>> >>>>>>>>
>>>>>>>>>>, >>>>>>>>
>->>>>>> TODO <>.
>>> coreutils 9.11 >>>>>> 2026 B2SUM(1)