private static function getMakeWritableCommand($realpath)
    {
        $realpath = Common::sanitizeInputValue($realpath);
        if (SettingsServer::isWindows()) {
            return "<code>cacls $realpath /t /g " . Common::sanitizeInputValue(self::getUser()) . ":f</code><br />\n";
        }
        return "<code>chmod -R 0755 $realpath</code><br />";
    }