To summarize:

    ^C	- Cease program immediately
    ^O	- Output suppress
    ^Q	- Qontinue output
    ^R	- Redisplay line
    ^S	- Stop output
    ^T	- Tells what's happening
    ^U	- Undoes line being typed in
    ^W	- Word deletion
    ?	- what?s expected here
    DEL	- DELetes one character
    ESC	- rESCognitiion invoked

Ok, good luck...