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38 lines
1.1 KiB
Plaintext
38 lines
1.1 KiB
Plaintext
---
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syntax: markdown
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tags: [tldr, common]
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source: https://github.com/tldr-pages/tldr.git
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---
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# md5sum
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> Calculate MD5 cryptographic checksums.
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> More information: <https://www.gnu.org/software/coreutils/manual/html_node/md5sum-invocation.html>.
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- Calculate the MD5 checksum for one or more files:
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`md5sum {{path/to/file1 path/to/file2 ...}}`
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- Calculate and save the list of MD5 checksums to a file:
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`md5sum {{path/to/file1 path/to/file2 ...}} > {{path/to/file.md5}}`
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- Calculate an MD5 checksum from `stdin`:
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`{{command}} | md5sum`
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- Read a file of MD5 checksums and filenames and verify all files have matching checksums:
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`md5sum {{[-c|--check]}} {{path/to/file.md5}}`
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- Only show a message for missing files or when verification fails:
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`md5sum {{[-c|--check]}} --quiet {{path/to/file.md5}}`
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- Only show a message when verification fails, ignoring missing files:
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`md5sum --ignore-missing {{[-c|--check]}} --quiet {{path/to/file.md5}}`
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- Check a known MD5 checksum of a file:
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`echo {{known_md5_checksum_of_the_file}} {{path/to/file}} | md5sum {{[-c|--check]}}`
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