Drupal upgrade throu patch

tar xf drupal-7.30.tar.gz
tar xf drupal-7.31.tar.gz
diff -Naur drupal-7.30 drupal-7.31 >drupal-7.30-7.31.patch
rm -rf drupal-7.30 drupal-7.31
cd drupal_root
patch -p1 --dry-run < ../repo/drupal/drupal-7.30-7.31.patch
patch -p1 < ../repo/drupal/drupal-7.30-7.31.patch
# Make database upgrade in site admin
# http://fuerstnet.de/en/drupal-upgrade-easier