Apply promotion rules, for Magento EE 1.13, CE 1.8

apply_promotion_rules.php

<?php
require_once 'app/Mage.php';
ini_set('display_errors', 1);
Mage::setIsDeveloperMode(true);
umask(0);
Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID);

try {
    Mage::getModel('catalogrule/rule')->applyAll();
    Mage::getModel('catalogrule/flag')->loadSelf()
        ->setState(0)
        ->save();
    Mage::app()->removeCache('catalog_rules_dirty');
    echo Mage::helper('catalogrule')->__('The rules have been applied.');
} catch (Exception $e) {
    echo Mage::helper('catalogrule')->__('Unable to apply rules.');
    print_r($e);
    print_r($e->getMessage());
}