Computer and Software Support

DOS Command Break


BREAK on|off

Internal command

Purpose: Used from the DOS prompt or in a batch file or in the CONFIG.SYS file to set (or display) whether or not DOS checks for a Ctrl + Break key combination.



DOS normally detects a press of the Ctrl + Break or Ctrl + C key combination only while checking for keyboard input or while sending characters to the screen.

Some application programs automatically reset BREAK (either ON or OFF); this will cancel the BREAK options you set.




break on

to tell DOS to check for the Ctrl + C key combination. To determine the current BREAK setting, enter


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