bob% gpg --gen-key
Please select what kind of key you want:
   (1) DSA and ElGamal (default)
   (2) DSA (sign only)
   (4) ElGamal (sign and encrypt)
Your selection?

bob% gpg --fingerprint bob@mail.com
pub  1024D/9E98BC16 1999-06-04 bob <bob@mail.com>
             Fingerprint: 268F 448F CCD7 AF34 183E  52D8 9BDE 1A08 9E98 BC16

alice% gpg --verify doc
gpg: Signature made Fri Jun  4 12:38:46 1999 CDT using DSA key ID 9E98BC16
gpg: Good signature from "Bob <bob@mail.com>"