This command makes you leave the game instantly and saves all your inventory. If you are carrying inventory you will be shown a message stating the cost per day in rent to keep your inventory and when it will be deleted. You may quit any where in the game unless it is a special no-quit room.
Under certain circumstances you can't quit, for example if you are fighting you will not be able to quit; you must flee first.
NOTE:
When you leave the game you MUST have enough money ON your character (not
in the bank) to pay for your rent or you will lose your equipment.
This command enables you to quaff potions in your possession. The effects of the potion will then follow. Potions can have many effects. The ones you want are generally those that would have effects similar to the spells 'heal' or 'cure light wounds'
Quality is how well a smithy has created a weapon, shield or armor.
This command shows you which quests you have completed. A quest is a special task that you may be asked to solve and usually brings great rewards after great dangers and hard puzzles.