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* *sum: update pages to make them consistent * shasum: remove redundant option * shasum: update page
32 lines
1,001 B
Markdown
32 lines
1,001 B
Markdown
# sha512sum
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> Calculate SHA512 cryptographic checksums.
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> More information: <https://www.gnu.org/software/coreutils/manual/html_node/sha2-utilities.html>.
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- Calculate the SHA512 checksum for one or more files:
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`sha512sum {{path/to/file1 path/to/file2 ...}}`
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- Calculate and save the list of SHA512 checksums to a file:
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`sha512sum {{path/to/file1 path/to/file2 ...}} > {{path/to/file.sha512}}`
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- Calculate a SHA512 checksum from `stdin`:
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`{{command}} | sha512sum`
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- Read a file of SHA512 checksums and filenames and verify all files have matching checksums:
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`sha512sum --check {{path/to/file.sha512}}`
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- Only show a message for missing files or when verification fails:
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`sha512sum --check --quiet {{path/to/file.sha512}}`
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- Only show a message when verification fails, ignoring missing files:
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`sha512sum --ignore-missing --check --quiet {{path/to/file.sha512}}`
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- Check a known SHA512 checksum of a file:
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`echo {{known_sha512_checksum_of_the_file}} {{path/to/file}} | sha512sum --check`
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