Which sentence is correct?

I have, sadly, shown myself to be bad at punctuation. And need further help in mastering it. So this is my question: which one of these sentences is correctly punctuated?

"I don't know, what you think you are doing?," said the angry man.
OR
"I don't know what, you think you are doing?" said the angry man.

Should the comma come in after the question mark (or exclamation mark) or should it be left out all together?

 

I believe you leave it out. Someone, I think it was Cogito, posted a tutorial on this type of thing. It was very helpful for me.

 

At first I thought you were questioning the placement of the first comma. I assume you moved it in the second sentence on accident.

 

This might help: https://www.writingforums.org/blog.php?b=294

 

neither one makes any sense... and neither one is a question... you seem to want to say:

or

 

Oops!

 

Thanks for the link, it was very helpful.

This might help: https://www.writingforums.org/blog.php?b=294