B2SUM(1) | User Commands | B2SUM(1) |
b2sum - compute and check BLAKE2 message digest
b2sum [OPTION]... [FILE]...
Print or check BLAKE2b (512-bit) checksums.
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
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.
There is no difference between binary mode and text mode on GNU systems.
Written by Padraig Brady and Samuel Neves.
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Copyright © 2024 Free Software Foundation, Inc. License
GPLv3+: GNU GPL version 3 or later
<https://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.
Full documentation
<https://www.gnu.org/software/coreutils/b2sum>
March 2024 | GNU coreutils 9.5 |