title: How to replace part of line in file using sed with regex?
body: <p>I am using sed 
  and want to find a part in the file and replace it
  I want to find address= and the content inside "" replace 
  in this case "my location" replace with London,
  I am using the following script which replaces everything that comes after address= while I want to replace only what I have inside ""</p>
  
  <pre><code>&lt;test address="my location",it is located&gt;
  
  sed -e s/address =.*$/address =com.test/g /file.json
  </code></pre>