tldr/pages/linux/shasum.md

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2017-10-04 18:29:42 +01:00
# shasum
> Calculate or check cryptographic SHA checksums.
- Calculate the SHA1 checksum for a file:
`shasum {{filename}}`
- Calculate the SHA256 checksum for a file:
`shasum -a 256 {{filename}}`
- Calculate the SHA512 checksum for multiple files:
`shasum -a 512 {{filename1}} {{filename2}}`
- Check a file with a list of sums against the directorys files:
`shasum -c {{list_file}}`
- Calculate the SHA1 checksum from stdin:
`{{somecommand}} | shasum`