title: what does "TERM environment variable not set" mean?
body: <p>I was writing a simple console application in Objective C.</p>
  
  <p>I have tried <strong>system("clear")</strong> but I am getting this message on console </p>
  
  <p>"<strong>TERM environment variable not set</strong>."</p>
  
  <p>Can anyone explain me what this is all about ?</p>
  
  <p>I am very new to both OSX and Objective C. 
  and I am sorry if this question is too dumb as I have not programmed much on *nix.
  (I have been doing a lot of Java and PHP development in my college days).</p>