md5, sha1, sha256, sha512 checksum in Linux
md5
md5sum filename
sha
### sha1
shasum filename
### sha256
shasum -a 256 filename
### sha512
shasum -a 512 filename
md5sum filename
### sha1
shasum filename
### sha256
shasum -a 256 filename
### sha512
shasum -a 512 filename