title: How to display only different rows using diff (bash)
body: <p>How can I display only different rows using diff in a separate file?</p>
  
  <p>For example, the file number 1 contains the line:</p>
  
  <pre><code>1;john;125;3
  1;tom;56;2
  2;jack;10;5
  </code></pre>
  
  <p>A file number 2 contains the following lines:</p>
  
  <pre><code>1;john;125;3
  1;tom;58;2
  2;jack;10;5
  </code></pre>
  
  <p>How to make in the following happen?</p>
  
  <pre><code>1;tom;58;2
  </code></pre>