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.

1  –  Syntax

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

      Command Keyword    Component        Parameter        Qualifier

         SHOW            ACTIVE CIRCUITS  CHARACTERISTICS  TO file-id
                         KNOWN CIRCUITS   COUNTERS
                         CIRCUIT line-id  STATUS
                                          SUMMARY

 For each command, you must supply a keyword, a component, and one
 or more parameters from the parameter list.  In general, the
 order in which you specify parameters makes no difference.  Braces
 around keywords and parameters indicate that you must choose one of
 the options.  Lowercase letters indicate user-supplied component and
 parameter values.

2  –  Issuing commands

 You enter NCP commands as keywords and parameters separated by spaces
 or tabs.  Use the standard continuation line convention--a hyphen as
 the last character in the line--to continue a long command to the next
 line.  If the first character of a line is an exclamation point (!),
 the line is ignored by NCP as a comment line.  Hyphens within and at
 the end of a comment line are ignored.  Lines beginning with an
 exclamation point, however, are not ignored if they follow a command
 line ending with a hyphen.

 When entering an NCP command, you can abbreviate any command verb,
 component keyword, or parameter name to its fewest unique letters.