title: Remove all lines does not contain in other file
body: <p>I have file A 'Emails' with so many email , and file B 'Domain' with so many domain</p>
  
  <p>Example File A 'Emails ':</p>
  
  <pre><code>ctv@ymail.com
  kfi@aol.in
  hi@axus.cc
  0@gmail.com
  igp@yahoo.com
  encor@mail2.com
  cjang@mail.com
  vn@gmail.com
  87@gmail.com
  ee@maoyt.com
  </code></pre>
  
  <p>Example file B 'Domain'</p>
  
  <pre><code>@gmail.com
  @yahoo.com
  </code></pre>
  
  <p>My expected result :</p>
  
  <pre><code>0@gmail.com
  igp@yahoo.com
  vn@gmail.com
  87@gmail.com
  </code></pre>
  
  <p>is there a way to do with 2 file in <code>emeditor</code> .Thanks much</p>