The  Network  Control Program (NCP) is  the utility program system
managers and operators use to configure and control DECnet-VAX
networks. System managers can also use NCP to monitor network
resources and test network components.

Use  the  HELP  command  to  display information at various levels of detail.
For example, each HELP display includes a list of command words
under an "Additional Information Available" section. These command words
serve as topics for the next level of information accessible by the HELP
command. In the general format of the HELP command shown below, the
topic is a command word from the list:

      NCP>HELP    [topic...]


You can abbreviate command words when you issue the command. Once you enter
a particular level of detail, that level becomes the current
level for accessing information. Through the use of the prompts "TOPIC?"
and "SUBTOPIC?" you can return to a higher or lower level of information,
respectively. The highest level of information is the general
description of the help facility.

Additional information available:

Parameters

 topic...

  Specifies one or more topics that indicate what information you
  want.  Information is located in a hierarchical manner, depending
  on the level of information required.

  If you specify an asterisk (*) in place of any topic, the  HELP
  command displays all information available at that level.

  If you specify an ellipsis (...) after any  topic, you obtain
  everything in the help file at that level.

  You can specify percent signs (%) and asterisks (*) in the topic
  as wild card characters.