2014-07-22 17:56:22 +08:00
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# sha1sum
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2016-01-07 18:31:27 +01:00
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> Calculate SHA1 cryptographic checksums.
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2021-04-01 17:54:26 +02:00
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> More information: <https://www.gnu.org/software/coreutils/sha1sum>.
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2014-07-22 17:56:22 +08:00
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2016-01-20 03:45:42 -08:00
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- Calculate the SHA1 checksum for a file:
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2014-07-22 17:56:22 +08:00
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`sha1sum {{filename1}}`
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2016-01-20 03:45:42 -08:00
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- Calculate SHA1 checksums for multiple files:
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2014-07-22 17:56:22 +08:00
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`sha1sum {{filename1}} {{filename2}}`
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2020-12-18 15:17:54 +01:00
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- Calculate and save the list of SHA1 checksums to a file:
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2020-12-18 15:14:04 +01:00
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2020-12-23 01:19:24 +01:00
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`sha1sum {{filename1}} {{filename2}} > {{filename.sha1}}`
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2020-12-18 15:14:04 +01:00
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2016-01-07 18:31:27 +01:00
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- Read a file of SHA1 sums and verify all files have matching checksums:
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2014-07-22 17:56:22 +08:00
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2020-12-18 15:04:57 +01:00
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`sha1sum --check {{filename.sha1}}`
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2020-12-18 13:47:34 +01:00
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2020-12-20 20:34:27 +01:00
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- Only show a message for files for which verification fails:
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2020-12-18 13:47:34 +01:00
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2020-12-18 15:04:57 +01:00
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`sha1sum --check --quiet {{filename.sha1}}`
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