title: paraFoam command is not working
body: <p>I recently started using Ubuntu for learning OpenFoam and I'm currently using this tutorial for learning
  <a href="http://files.the-foam-house5.webnode.es/200000361-e64a0e745a/Chapter2_Plates.pdf" rel="nofollow noreferrer">http://files.the-foam-house5.webnode.es/200000361-e64a0e745a/Chapter2_Plates.pdf</a></p>
  
  <p>I followed the tutorial up until section 2.3.3 and placed the files in the right directories, when I try type the command <code>blockMesh</code> followed by paraFoam in the terminal, it says it's not found.</p>
  
  <pre><code>bash$ paraFoam
  -bash: paraFoam: command not found
  </code></pre>
  
  <p>It is installed, how come it says it's not found? How to fix this?</p>