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28 lines
799 B
Markdown
28 lines
799 B
Markdown
# b3sum
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> Calculate BLAKE3 cryptographic checksums.
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> More information: <https://github.com/BLAKE3-team/BLAKE3/tree/master/b3sum>.
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- Calculate the BLAKE3 checksum for one or more files:
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`b3sum {{path/to/file1 path/to/file2 ...}}`
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- Calculate and save the list of BLAKE3 checksums to a file:
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`b3sum {{path/to/file1 path/to/file2 ...}} > {{path/to/file.b3}}`
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- Calculate a BLAKE3 checksum from `stdin`:
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`{{command}} | b3sum`
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- Read a file of BLAKE3 checksums and filenames and verify all files have matching checksums:
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`b3sum --check {{path/to/file.b3}}`
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- Only show a message for missing files or when verification fails:
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`b3sum --check --quiet {{path/to/file.b3}}`
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- Check a known BLAKE3 checksum of a file:
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`echo {{known_blake3_checksum_of_the_file}} {{path/to/file}} | b3sum --check`
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