Upgrade Magento from 1.6 to 1.7+

magento_mage_upgrade.sh

#!/bin/sh

# From http://www.magentocommerce.com/wiki/magento_upgrade_from_1.6.0_1.6.1_or_1.6.2._to_1.7.0.0

rm -rf var/cache/* var/session/* var/full_page_cache/*

chmod +x ./mage
./mage mage-setup .
./mage config-set preferred_state stable
./mage list-installed
./mage list-upgrades
./mage install http://connect20.magentocommerce.com/community Mage_All_Latest --force

php shell/indexer.php reindexall