tldr/pages/osx/shasum.md

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