gnupg: GPGSM LISTKEYS

 
 5.6.6 List available keys
 -------------------------
 
 To list the keys in the internal database or using an external key
 provider, the command:
 
        LISTKEYS  PATTERN
 
    is used.  To allow multiple patterns (which are ORed during the
 search) quoting is required: Spaces are to be translated into "+" or
 into "%20"; in turn this requires that the usual escape quoting rules
 are done.
 
        LISTSECRETKEYS PATTERN
 
    Lists only the keys where a secret key is available.
 
    The list commands are affected by the option
 
        OPTION list-mode=MODE
 
    where mode may be:
 '0'
      Use default (which is usually the same as 1).
 '1'
      List only the internal keys.
 '2'
      List only the external keys.
 '3'
      List internal and external keys.
 
    Note that options are valid for the entire session.