As previous answer stated by Stefan G. you're already in the mysql tool. You may or may not be actually connected to the server though. When you have that prompt mysql>
type status
. It'll tell you whether or not you're connected to an instance or not. There will be a Connection:
field in the status output which should be the IP address of your instance.
If it's NOT, then something went wrong at the connection step, and you'll need to run connect <databasename>
where is the id of one of the datbases in your instance. See if that errors out as well, and if it does, there's something deeper wrong going on here.
If you ARE connected to the database, you should be able to run SHOW tables;
and have it list the tables in your database.