libmd

Message digest cryptographic functions library from BSD systems.

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Message Digest functions from BSD systems

compute MD5 hash of a file$ md5 myfile.txt

compute SHA1 checksum of a file$ sha1 myfile.txt

compute SHA256 hash of a file$ sha256 myfile.txt

verify file integrity with MD5 checksums$ md5 -c checksums.md5

hash multiple files and compare results$ sha1 file1.txt file2.txt file3.txt