gnupg: gpgconf

 
 9.4 Modify .gnupg home directories
 ==================================
 
 The 'gpgconf' is a utility to automatically and reasonable safely query
 and modify configuration files in the '.gnupg' home directory.  It is
 designed not to be invoked manually by the user, but automatically by
 graphical user interfaces (GUI).(1)
 
    'gpgconf' provides access to the configuration of one or more
 components of the GnuPG system.  These components correspond more or
 less to the programs that exist in the GnuPG framework, like GPG, GPGSM,
 DirMngr, etc.  But this is not a strict one-to-one relationship.  Not
 all configuration options are available through 'gpgconf'.  'gpgconf'
 provides a generic and abstract method to access the most important
 configuration options that can feasibly be controlled via such a
 mechanism.
 
    'gpgconf' can be used to gather and change the options available in
 each component, and can also provide their default values.  'gpgconf'
 will give detailed type information that can be used to restrict the
 user's input without making an attempt to commit the changes.
 
    'gpgconf' provides the backend of a configuration editor.  The
 configuration editor would usually be a graphical user interface program
 that displays the current options, their default values, and allows the
 user to make changes to the options.  These changes can then be made
 active with 'gpgconf' again.  Such a program that uses 'gpgconf' in this
 way will be called GUI throughout this section.
 

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