%Hier eine Beispielsession mit CPLEX.
%Kommentarzeilen habe vorne ein "%"!

dragon:~ <18>% cplex

Welcome to CPLEX Linear Optimizer 6.6.1
  with Mixed Integer & Barrier Solvers
Copyright (c) ILOG 1997-2000
CPLEX is a registered trademark of ILOG

Type 'help' for a list of available commands.
Type 'help' followed by a command name for more
information on commands.

CPLEX> help

add             add constraints to the problem
baropt          solve using barrier algorithm
change          change the problem
display         display problem, solution, or parameter settings
enter           enter a new problem
help            provide information on CPLEX commands
mipopt          solve a mixed integer program
netopt          solve the problem using network method
primopt         solve using the primal method
quit            leave CPLEX
read            read problem or basis information from a file
set             set parameters
tranopt         solve using the dual method
write           write problem or solution info. to a file
xecute          execute a command from the operating system

Enter enough characters to uniquely identify commands & options.
Commands may be executed in either of two formats:
1. Incremental entry--enter the command name, and CPLEX
   will prompt you for additional required information.
2. Single-line entry--CPLEX accepts single-line command
   strings, provided simple syntax rules are observed.

CPLEX> read test.lp
%Das Beispielproblem aus der Datei test.lp wird eingelesen!
Problem 'test.lp' read.
Read time =    0.00 sec.

CPLEX> primopt   
%Das Problem wird mit einer "primalen" Methode geloest.
Tried aggregator 1 time.
LP Presolve eliminated 1 rows and 2 columns.
All rows and columns eliminated.
Presolve time =    0.00 sec.

Primal - Optimal:  Objective =    2.0000000000e+00
Solution time =    0.00 sec.  Iterations = 0 (0)

CPLEX> display
%Jetzt moechte ich die Loesung ausgeben!

Display Options:

iis               display infeasibility diagnostics (IIS constraints)
problem           display problem characteristics
sensitivity       display sensitivity analysis
settings          display parameter settings
solution          display existing solution

Display what: sol
%Eine eindeutige Abkuerzung genuegt.

Display Solution Options:

basis             display a range of basic constraints or variables
bestbound         display the current MIP best bound
dual              display a set of solution dual values
kappa             display the condition number of the basis matrix
objective         display solution objective value
quality           display quality of solution
reduced           display a set of solution reduced costs
slacks            display a set of solution slack values
variables         display a set of solution variable values

Display what: variables x1-2
Variable Name           Solution Value
x2                            1.000000
All other variables in the range 1-2 are zero.
CPLEX> quit
dragon:~ <19>%