(coreutils.info.gz) sha2 utilities

Info Catalog (coreutils.info.gz) sha1sum invocation (coreutils.info.gz) Summarizing files
 
 6.6 sha2 utilities: Print or check SHA-2 digests
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 The commands 'sha224sum', 'sha256sum', 'sha384sum' and 'sha512sum'
 compute checksums of various lengths (respectively 224, 256, 384 and 512
 bits), collectively known as the SHA-2 hashes.  The usage and options of
 these commands are precisely the same as for 'md5sum'.   md5sum
 invocation.
 
    Note: The SHA384 and SHA512 digests are considerably slower to
 compute, especially on 32-bit computers, than SHA224 or SHA256.
 
Info Catalog (coreutils.info.gz) sha1sum invocation (coreutils.info.gz) Summarizing files
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