WHAT Version 1.0

   A FAST Cluster and network-wide SHOW USERS (and Much more) type command.

	Authors:

	Pete Portante, (most of the work)
	Andrew W. Potter
	David Mulvihill
	Rochester Institute of Technology

	Distributed and supported by:

        Andrew W. Potter
        Systems Programmer
        Information Systems and Computing
        Rochester Institute of Technology
        Rochester NY, 14623  PH (716) 475-6994
        Email:    awpsys@ritvax.BITNET
                  awp8101@ritcv.UUCP


	**** Installation instructions are in WHAT.DOC ***


WHAT is a very fast utility that uses DECnet non-transparent communications
to produce three different displays. These displays are:

	1) A SHOW USERS like display from one or more DECnet nodes.

	2) A full user activity display. (Similar to the Unix "w"
             command.

	3) A one line summary of system activity, (User counts,uptime...)

        Qualifiers exist to effectly subset the user list. (I.E.
        look only for users A,B and C on nodes X, Y, and Z)

	Complete online help exists.

What use a detached process that provides very fast response to
multiple incomming network requests when serving a request from a
remote system.

	WHAT uses some of the following techniques for speed.

	1) Looks at process state BEFORE calling $getjpi to retrieve
           information in P1 space.  This allows WHAT to NOT request
           that information if doing so would require a inswap.

	2) Does NOT use DECnet to retreive information from the local
           node.  For example assume the user is logged on to
           LARRY and he issues the command:
		$ WHAT/NODE=(CURLY,LARRY,MOE)
	   What would connect to the non-transparent object only to
           retrieve the info from CURLY and MOE.

	3) Sends the qualifing information (/USER=userlist) to the
           remote node for remote subsetting.  This prevents having
           to transmit over the net large data buffers of ALL users
           just to filter it all out locally.