al-devnull_err"><a href="#val-devnull_err" class="anchor"></a><code><span><span class="keyword">val</span> devnull_err : 
  <span><span><span>(<span class="type-var">'stdin</span>, <span class="type-var">'stdout</span>, <a href="#type-stderr">stderr</a>)</span> <a href="../Core/Cmd/index.html#type-t">Cmd.t</a></span> <span class="arrow">&#45;&gt;</span></span>
  <span><span>(<span class="type-var">'stdin</span>, <span class="type-var">'stdout</span>, <a href="#type-devnull">devnull</a>)</span> <a href="../C