Updating on Drupal 6 multi sites using Drush 5
Short notes on how to use Drush 5 to deploy on a Drupal 6 multi site.
First change directory to the root of your Drupal multi site ($ CD /var/www/mysite/)
The setting --yes will force the command.
The setting @sites will make the Drush command to affect all the sites including the main database/site