title: wget using an environment variable
body: <p>I need to do a wget of a file url concatenated with a variable known as Initial</p>
  
  <p>but if i do for instance,</p>
  
  <pre><code>Initial="something"
  
  wget www.google.ca/${Initial}
  </code></pre>
  
  <p>output:</p>
  
  <pre><code>www.google.ca/$%7BInitial%7D
  </code></pre>
  
  <p>I want to get desired output of:</p>
  
  <pre><code>www.google.ca/something
  </code></pre>
  
  <p>thanks!</p>