b3sum1
B3sum
Usage
b3sum [OPTIONS]
[FILE] ...
Overview
Arguments:
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[FILE]... |
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Files to hash, or checkfiles to check |
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When no file is given, or when - is given, read standard input. |
Options
--keyed
-
Use the keyed mode, reading the 32-byte key from stdin
--derive-key <CONTEXT>
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Use the key derivation mode, with the given context string |
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Cannot be used with |
-l, --length <LEN>
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The number of output bytes, before hex encoding |
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[default: 32] |
--seek <SEEK>
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The starting output byte offset, before hex encoding |
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[default: 0] |
--num-threads <NUM>
-
The maximum number of threads to use
-
By default, this is the number of logical cores. If this flag is omitted, or if its value is 0, RAYON_NUM_THREADS is also respected.
--no-mmap
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Disable memory mapping |
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Currently this also disables multithreading. |
--no-names
-
Omit filenames in the output
--raw
-
Write raw output bytes to stdout, rather than hex
--no-names is implied. In this case, only a single input is allowed.
--tag
-
Output BSD-style checksums: BLAKE3 ([FILE]) = [HASH]
-c, --check
-
Read BLAKE3 sums from the [FILE]s and check them
--quiet
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Skip printing OK for each checked file |
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Must be used with |
-h, --help
-
Print help (see a summary with '-h')
-V, --version
-
Print version
Releases
2 releases since Debian 12 (Bookworm); the text changed 1 time.
--check until Debian 12 (Bookworm);
--derive-key until Debian 12 (Bookworm);
--help until Debian 12 (Bookworm);
--keyed until Debian 12 (Bookworm);
--length until Debian 12 (Bookworm);
--no-mmap until Debian 12 (Bookworm);
--no-names until Debian 12 (Bookworm);
--num-threads until Debian 12 (Bookworm);
--quiet until Debian 12 (Bookworm);
--raw until Debian 12 (Bookworm);
--version until Debian 12 (Bookworm);
-V until Debian 12 (Bookworm);
-c until Debian 12 (Bookworm);
-h until Debian 12 (Bookworm);
-l until Debian 12 (Bookworm).