title: subprocess.Popen doesn't run the bash command?
body: <p>I have tried using subprocess .Popen in Python IDLE, in both versions 2.7 and 3.2 and the code didn't work!!!</p>
  
  <p><img src="https://i.stack.imgur.com/LluJU.png" alt="The Python Code"></p>
  
  <p>Thank you.</p>