LINGO is available on sisko.ecs.umass.edu (ECS machine).

sisko% lingo

 Extended LINGO 5.0 (15 Apr 99)

 Copyright (C) 1999 LINDO Systems Inc. Chicago, IL.
 Licensed material, all rights reserved.
 Copying except as authorized in license agreement prohibited.

 : help
  
   This is LINGO,  Copyright (c) 1999 LINDO Systems.   LINGO is
   licensed material with all rights reserved.   Copying except
   as authorized in license agreement is prohibited.
  
   LINGO solves  mathematical  models entered in  natural form.
   LINGO's solvers can handle both linear and nonlinear models,
   as well as integer variables.
  
   To  learn  the  available  commands type "COMMANDS".  To get
   help for a particular command, type "HELP name" where "name"
   is  the  command   name.   for  more  help  on   entering  a
   formulation, type "HELP MODEL".
  
   Maximum model size is:
  
  Extended  LINGO/PC
  
      Input                   Max. Size
      ---------------------------------
      Variables               UNLIMITED
      Nonlinear Variables     UNLIMITED
      Integer Variables       UNLIMITED
      Constraints             UNLIMITED
      Nonlinear Constraints   UNLIMITED
     Characters per name            32
  
   Larger versions are available.  For information contact:
  
      LINDO Systems, Inc
      1415 N. Dayton St.
      Chicago, IL  60622
  
      Tel: 312/988-7422
      Fax: 312/988-9065
      E-mail: sales@lindo.com -or- tech@lindo.com
  
 -------------------------------------------------------------------------- 
  : commands

 LINGO commands by category.  For information on a specific command, type:
  'HELP command-name'.
  
    1) Information
       COM     CAT     HELP    MEM
  
    2) Input
       MODEL   TAKE
  
    3) Display
       LOOK    GENL    GEN     PAUS    HIDE
  
    4) File Output
       DIV     RVRT    SAVE    SMPS
  
    5) Solution
       GO      SOLU    NONZ    RANGE   EXP     OLEEXP  ODBCEXP
  
    6) Problem Editing
       DEL     EXT     ALT
  
    7) Quit
       QUIT
  
    8) System Parameters
       PAGE    IPTOL   TERS    VERB    BIP     WIDTH   SET     FREEZE
  
    9) Miscellaneous
       TIME    NEWPW

--------------------------------------------------------------------------

The easiest way to run Lingo is to create an input file <file.lng> with 
your LP program and, when prompted by Lingo, type:

:	take file.lng

It will run the program and display the result on the screen and/or 
will store it in the file <file.out> specified in your input file.
For details refer to the examples given on the web site.