title: Replacing the test with sed
body: <p>I'm trying to replace the text using the sed, but it's showing some error. Not getting where I'm getting wrong.</p>
  
  <pre><code>sed -i 's/process.env.REDIRECT_URI/http:\/\/test-domain.apps.io/\callback/g' input.txt
  </code></pre>
  
  <p>Have this : </p>
  
  <pre><code>process.env.REDIRECT_URI 
  </code></pre>
  
  <p>Replace this with : </p>
  
  <pre><code>http://test-domain.apps.io
  </code></pre>