Does anyone know how to delete or clear the csh history. When people log out I would like the history to be copied to a file along with some other infomation about the connection. However when I do this the history goes back several days so it seems like the last person that logged out did more than they did.

So I would like to copy the history then clear or remove the history. That way when the next person logs in they will start off with a clean slate.