Выполнение на агентов на кроне - помогите настроить

<?php
$_SERVER["DOCUMENT_ROOT"] = realpath(dirname(__FILE__)."/. ./..");
$DOCUMENT_ROOT = $_SERVER["DOCUMENT_ROOT"];

define("NO_KEEP_STATISTIC", true);
define("NOT_CHECK_PERMISSIONS",true);
define('BX_NO_ACCELERATOR_RESET', true);
define('CHK_EVENT', true);
define('BX_WITH_ON_AFTER_EPILOG', true);

require($_SERVER["DOCUMENT_ROOT"]."/bitrix/modules/main/include/prolog_before.php");

@set_time_limit(0);
@ignore_user_abort(true);

CAgent::CheckAgents();
define("BX_CRONTAB_SUPPORT", true);
define("BX_CRONTAB", true);
CEvent::CheckEvents();

if(CModule::IncludeModule('sender'))
{
    \Bitrix\Sender\MailingManager::checkPeriod(false);
    \Bitrix\Sender\MailingManager::checkSend();
}

require($_SERVER['DOCUMENT_ROOT']."/bitrix/modules/main/tools/backup.php");
CMain::FinalActions();
?>

root@194-58-96-82:~# /var/www/www-root/data/www/sait.ru/bitrix/modules/main/tools/cron_events.php                                                                           
/var/www/www-root/data/www/sait.ru/bitrix/modules/main/tools/cron_events.php: line 1: ?php: No such file or directory                                                       
/var/www/www-root/data/www/sait.ru/bitrix/modules/main/tools/cron_events.php: line 2: syntax error near unexpected token `('                                                
/var/www/www-root/data/www/sait.ru/bitrix/modules/main/tools/cron_events.php: line 2: `$_SERVER["DOCUMENT_ROOT"] = realpath(dirname(__FILE__)."/. ./. ./. ./..");'