You are able to set the prompt displayed to 
you at the beginning of each line.  The default prompt is '> '.
Nightmare Shell recgonises the following variables:
  $D : Your current directory (immortals only).
  $V : Displays INVIS  when invis.
  $v : Displays invis when invis.
  $H : You current hp maximum.
  $h : Your current hp.
  $G : Your current mp maximum.
  $g : Your current mp.
  $I : Your current sp maximum.
  $i : Yuor current sp.
  
EXAMPLE: setenv PROMPT $h hps   $g mps   $i sps>
    Will display '60 hps  150 mp  50 sps>' at each prompt.