method">
  
    #<strong>system!</strong>(*args)  &#x21d2; <tt>int</tt> 
  

  

  
</h3><div class="docstring">
  <div class="discussion">
    <p>Execute a command, logging it to the standard output and outputing the
commands output and error to the standard output and error, respectively. If
the command exits nonzero, an exception is raised and your CLI app will
also exit nonzero.</p>

<p>If you need to handle  the command exiting nonzero, use <span class='object_link'><a href="#system-instance_method" ti