求救：JS中怎么执行命令行无法把结果输出到文件中

<html>
<head>
<body>
<table>标题</caption>
  <tr>
<td><input type='button' name='aa' value="ok" onclick=check() />
</td>
  </tr></table>
</body>
</head><script language="javascript">
function check()
        {

        obj = new ActiveXObject("wscript.shell");
        var temp = "ipconfig \>c:\\test"  //为啥在C盘没该文件        obj.Run(temp);
}
</script>
</html>