title: How to ignore files using git-gui (tcl-tk) application?
body: <p>I'm using the <code>git-gui</code> interface to manage my <code>git</code> project. Despite being ugly –<code>tcl-tk</code>– it's one of the most complete interface out there. </p>
  
  <p>However, I can't find <strong>how to ignore files from this interface ?</strong></p>
  
  <p><img src="https://i.stack.imgur.com/tRKYe.png" alt="enter image description here"></p>