The command syntax has four parts:  a command keyword, a component
 keyword(s), one or more parameters, and, optionally, one or more
 qualifiers.  The command keywords are:

 SET             Change parameters in the volatile database.
 DEFINE          Change parameters in the permanent database.
 CLEAR           Remove components or parameters from the
 PURGE             volatile or permanent databases.
 SHOW            Display information about components in the
 LIST              volatile or permanent databases.
 CONNECT         Connect local terminal to remote node console interface.
 DISCONNECT      Disconnect logical links with processes.
 COPY            Copy one node database to another.
 LOOP            Test lines or connections to nodes.
 LOAD            Downline load nodes.
 TRIGGER         Initiate bootstrap sequence of a node.
 TELL            Establish temporary executor node.
 ZERO            Zero counters for the specified entity.

 All underscores found in parameters must be replaced with spaces
 when parameters are used in NCP commands.