    
      
        &mdash;
        <div class='inline'><p>Whatever you would give to <code>Kernel#system</code> or <code>Open3.popen3</code>.</p>
</div>
      
    </li>
  
</ul>

<p class="tag_title">Returns:</p>
<ul class="return">
  
    <li>
      
      
        <span class='type'>(<tt>int</tt>)</span>
      
      
      
        &mdash;
        <div class='inline'><p>0 if the command completed normally, otherwise the nonzero exit status. <strong>DO NOT TREAT THIS AS A BOOLEAN VALUE</strong></p>
</di