DONT USE THIS! IT COULD BREAK THE WHOLE STORE! Script to resave all products in a magento shop. http://fishpig.co.uk/magento/tutorials/run-magento-code-externally/
<?php
require_once('app/Mage.php'); //Path to Magento
umask(0);
Mage::app();
// Now you can run ANY Magento code you want
// Change 12 to the ID of the product you want to load
$_product = Mage::getModel('catalog/product')->getStore(1)->load(403);
$temp = $_product->getName();
$_product->setName('');
$_product->setName($temp);
$_product->save();
?>
Saved;