title: Renaming files in powershell using the folder name
body: <p>Using Powershell, I want to rename files in folders by using the name of the folder that the files are in.  So in my C:\temp directory, there are 3 folders called 'aaa', 'bbb' and 'ccc'.  In each of these folders, there are 3 files called doc1.txt, doc2.txt and doc3.txt.  I would like to rename all 9 .txt files to folderName+fileName, so they would be renamed to the following:</p>
  
  <pre><code>aaadoc1.txt
  aaadoc2.txt
  aaadoc3.txt
  bbbdoc1.txt
  bbbdoc2.txt
  bbbdoc3.txt
  cccdoc1.txt
  cccdoc2.txt
  cccdoc3.txt
  </code></pre>
  
  <p>Please could anyone point me in the right direction about how to approach this?</p>