You can leave Gforth by typing
bye or Ctrl-d (at the start
of a line) or (if you invoked Gforth with the
option) Ctrl-c. When you leave Gforth, all of your definitions and
data are discarded. For ways of saving the state of the system before
leaving Gforth see Image Files.
bye– tools-ext “bye”
Return control to the host operating system (if any).