title: How to change permissions to certain file pattern/extension?
body: <p>Using <code>chmod</code>, I do <code>chmod +x *.sh</code> in the current directory but what if I want to change all files including files within subfolders that has an sh file extension?.</p>
  
  <p><code>chmod +x -R *</code> will work but I need something more like <code>chmod +x -R *.sh</code></p>