gnupg: GPGSM VERIFY

 
 5.6.4 Verifying a Message
 -------------------------
 
 To verify a message the command:
 
        VERIFY
 
    is used.  It does a verify operation on the message send to the input
 FD. The result is written out using status lines.  If an output FD was
 given, the signed text will be written to that.  If the signature is a
 detached one, the server will inquire about the signed material and the
 client must provide it.