 put warning and critical 

              levels with -b option.<br>

              <b>0 means no warning or critical level checks</b></p>

            <p class="SectionBody">When the extended checks are activated (-q 
              option), the warning levels are <br>
              -w <i>&lt;In bytes&gt;</i>,<i>&lt;Out bytes&gt;</i>,<i>&lt;In error&gt;</i>,<i>&lt;Out 
              error&gt;,<i>&lt;In disc&gt;</i>,<i>&lt;Out disc&gt;</i></i> -c 
              <i>&lt;In warn&gt;</i>,<i>&lt;Out war