title: How to grep multiple patterns together
body: <p>I have a file which has text with some information and has similar structure to the following. 
  Note: Please assume ------ as unwanted text. This is other information that I don't care for. </p>
  
  <pre><code>==== Start of Info for Employee 1 ====
  --------
  --------
  --------
  Start of Address information for employee 1
  Street No
  City
  Zip
  End of Address information
  -------
  -------
  ==== Start of Info for Employee 2 ====
  --------
  --------
  --------
  Start of Address information for employee 2
  Street No
  City
  Zip
  End of Address information
  -------
  -------
  ==== Start of Info for Employee 3 ====
  --------
  --------
  --------
  Start of Address information for employee 3
  Street No
  City
  Zip
  End of Address information
  -------
  -------
  </code></pre>
  
  <p>I am interested in getting the following information by doing a grep or some other way:</p>
  
  <pre><code>==== Start of Info for Employee 1 ====
  Start of Address information for employee 1
  Street No
  City
  Zip
  End of Address information
  ==== Start of Info for Employee 2 ====
  Start of Address information for employee 2
  Street No
  City
  Zip
  End of Address information
  ==== Start of Info for Employee 3 ====
  Start of Address information for employee 3
  Street No
  City
  Zip
  End of Address information
  </code></pre>
  
  <p>How can I do this?</p>