Depends on what you signed in order for the short sale to go through.
Typically the bank will require you to sign an unsecured promissory note on the remaining balance of what is owed.
Once you close on the house,
they will contact you to arrange payments on the remaining balance.
You can settle for less than what is owed and put together a payment plan.
If you choose not to pay them,
they will then refer to a collections agency who will try to collect or arrange payment options.
If you decide not to settle with them,
they have a right to sue you in court and gain a judgement.
If this happens,
they will look to take whatever assets you might have.
make sure your current bank accounts are not with the bank that you owe,
they will most likely drain the account.