title: Manage stdout and stdin in ipython notebook
body: <p>A short ipython notebook cell:</p>
  
  <pre><code>%%bash    
  read value
  5
  echo "Value: $value"
  </code></pre>
  
  <p>The output for this cell is <code>Value: 5</code>
  Is possible to introduce the value interactively using the ipython notebook?</p>
  
  <p>If now I try to run this:</p>
  
  <pre><code>%%bash
  ssh user@host pwd
  </code></pre>
  
  <p>since is the first time trying to connect to <code>host</code>, ssh launches the question:</p>
  
  <p><code>Are you sure you want to continue connecting (yes/no)?</code></p>
  
  <p>But this question is printed in the shell where I started the ipython notebook, and not in the notebook itself. And here I can write the answer in the shell.</p>
  
  <p>Would be possible to display the output and also introduce my answer through the notebook web interface?</p>