var">'stdin</span>, <span class="type-var">'stdout</span>, <a href="Core/index.html#type-stderr">Core.stderr</a>)</span> <a href="Core/Cmd/index.html#type-t">Core.Cmd.t</a></span> <span class="arrow">&#45;&gt;</span></span> <span>string list</span></span></code></div><div class="spec-doc"><p>Same as <a href="#val-lines"><code>lines</code></a>, but reads stderr rather than stdout.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-read_joined"><a href="#val-read_joined" class="anc