what commandments do the pigs break and how do they get around those commandments?

Whatever goes upon two legs is an enemy- The pigs begin to walk on two legs, becoming more like himans.

Whatever goes upon four legs, or has wings, is a friend

No animal shall wear clothes- the pigs do eventually start to dress in clothing, but this commandment is never officially changed.

No animal shall sleep in a bed- Broken when the pigs move into the house and sleep in the beds; the commandment is changed to no beds with sheets.

No animal shall drink alcohol- Napoleon gets thouroughly drunk and the words are become "to excess."

No animal shall kill any other animal- this commandment is broken when the pigs begin executing the other animals. The Commandment is changed to "without cause."

All animals are equal- broken when the milk and the apples are to be eaten by the pigs alone (brain food)

The pigs broke the rules and some certain pigs broke two like squealer and napoleon broke the first and last rule first