title: How to get the width of terminal window in Ruby
body: <p>Have you ever noticed that if you run rake -T in rails the list of rake descriptions are truncated by the width of the terminal window. So there should be a way to get it in Ruby and Use it. </p>
  
  <p>I'm printing some Ascii-art on the screen and I don't want it to be broken. therefore I need to find out the width of terminal at run time some how. </p>
  
  <p>Any Idea how to do that?</p>