verifying hashes with GnuPG

[Michel Messerschmidt]

On Tue, Jul 20, 2010 at 04:14:16PM -0400, vedaal at nym.hush.com wrote:
> Is there a gnupg command to verifiy a hash, not a signature, (e.g. 
> MD5, SHA1, SHA256), by entering the hash string and the file or 
> text it corresponds to?

Why would you want to use gnupg for this if md5sum, sha1sum, sha256sum, 
etc. are available for most systems?