Verify checksum file

Cli

SHA-256

# Create checksum file
shasum -a 256 file.ext > file.ext.sha256sum
# file content: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  file.ext

# Verify checksum 
shasum -c file.ext.sha256sum
# output: file.ext: OK

SHA-1

1 2	shasum file.ext > file.ext.sha1sum shasum file.ext.sha1sum

MD5

1 2	md5 file.ext > file.ext.md5sum md5 -c file.ext.md5sum