Martinhouse is correct. IF they are a storage variety, leave them in a warm, dry, shady place... on a pallet or board, not on concrete or damp soil. Once they are cured (generally a week or so) the outer skins will be dry and somewhat loose. Knock any dirt off the roots, trim the dried tops and store in baskets or mesh bags in the coolest place you have.
If you don't have anyplace cooler than room temperature, they really need to be refrigerated to keep for long.
If they are a sweet variety, refrigerate them and plan on using them up within a month or two...
Summerthyme