Restores shelved file revisions, check-in notes, comments, and work item associations to the current workspace or removes ...

Restores shelved file revisions, check-in notes, comments, and work item
associations to the current workspace or removes an existing shelveset from
the server.

tf unshelve [/move] [shelvesetname[;username]] [itemspec] [/recursive]
            [/nomerge] [/noautoresolve] [/noprompt] [/login:username,[password]]