Programmatically send shipping/tracking mail

Question

In Magento 1.4, I am successfully using this code to mark an order as Complete and add a shipping tracking code to it :

$order = Mage::getModel(\'sales/order\')-         


        

Answer 1

                if($shipment){
                    if(!$shipment->getEmailSent()){
                        $shipment->sendEmail(true);
                        $shipment->setEmailSent(true);
                        $shipment->save();                          
                    }
                }