Don't take this the wrong way but if you don't know what to do with a snake in shed then I am scared to learn what else you don't know. You brought a snake into your home and now you have a responsibility to care for it the best you can. You can come on here and ask questions but you are going to get the short answers. A good book will fill in more info for you and give you ideas on what to do.
A book is not all encompassing, and it may even be wrong in some places, but it is a start. I think the Love's "Corn Snake Manual" is a great book with info for beginners and I am sure many on here can offer other titles. You should pick up a couple $10 books and read them and compare what they have to say. The line of "Manual" books Barron's puts out is really good.
Most of us got into snakes because they are cool and most of us did the same thing you did. We got a snake then tried to figure out how to care for it. They can and will live through a whole lot of abuse but most of us are trying to give them a better home with less abuse as we learn what is best for them.
So understand that I am not scolding you at all for having a snake and not knowing what to do in a stage of its life events. Instead I am saying welcome to the club, you have a lot to learn about your little guy and a book is a good beginning. That way you can learn about the events that will come up before they occur and you can be prepared. Last thing is to keep in mind that this a public forum and anybody can post here with any point of view, right or wrong. So don't believe all you read and try to take all comments on a subject and think about them and decide what you believe is right for your animals.
Good Luck
Jason
Your snake knows what he is doing. But I recomend that you fold up some toilet paper in one of his hides and keep it wet until after the shed. It will help him keep moist. Many snakes will not soak and that is why a humid hide is a good idea.