Terminal Control Commands Control characters are special characters produced by holding down the control key and striking some other keyboard character. These special characters are used to control the output to the terminal. If a command requires that the control key be held down before typing the letter, its presence is signified by a preceeding the letter. HELP is available on the following qualifiers RUBOUT CHARACTERSIZE Changing character size on 4014 terminals C R Retype Z Exit Q Restart S Stop O Stop printing U Delete line Type HELP $CONTROL qualifier for more information. 2 RUBOUT EACH TIME THE RUBOUT KEY IS HIT THE PREVIOUS CHARACTER IN THE LINE IS DELETED. 2 U U TYPING U DELETES THE ENTIRE LINE 2 R R TYPING R RETYPES THE LINE WITH RUBOUTS REMOVED 2 O O TYPING O STOPS OUTPUT TO A TERMINAL UNTIL O IS TYPED AGAIN. ALL OUTPUT SENT TO A TERMINAL WHILE OUTPUT IS DISABLED IS LOST. 2 S S TYPING S STOPS OUTPUT TO A TERMINAL BUT NO OUTPUT IS LOST. 2 Q Q TYPING Q RESTARTS OUTPUT TO A TERMIAL WHICH WAS HALTED BY TYPING S. 2 CHARACTERSIZE ESC ; TYPING ESC ; ON A 4014 TERMINAL WITH THE LOCAL/LINE SWITCH SET TO LOCAL, CHANGES THE LETER SIZE TO SMALL. THE LOCAL/LINE SWITCH MUST BE RETURNED TO LINE TO CONTINUE TALKING TO THE COMPUTER. ESC IS THE ESCAPE OR ALTMODE KEY ON THE TERMINAL. ESC 8 TYPING ESC 8 ON A 4014 TERMINAL WITH THE LOCAL/LINE SWITCH SET TO LOCAL, CHANGES THE LETTER SIZE TO LARGE. THE LOCAL LINE SWITCH MUST BE RETURNED TO LINE TO CONTINUE TALKING WITH THE COMPUTER. ESC IS THE ESCAPE OR ALTMODE KEY ON THE TERMINAL. 2 C C TYPING C ACTIVATES THE SYSTEM MONITOR MCR. 2 Z Z Z IS THE EXIT COMMAND FOR EXITING FROM ANY OF THE SYSTEM UTILITY PROGRAMS(PIP, TKB, EDI, F4P).