HP 3000 Manuals

RJE User/Programmer Reference Manual

Subsystem Break, [CTRL]-Y, Response 

Whenever a user enters a [CTRL]-Y, processing of a subsystem command is
to be aborted.  A subsystem prompt character (#) will be issued once the
command has been aborted successfully.  Subsystem commands may respond to
a [CTRL]-Y differently.  Refer to Chapter 3, "Commands" and Chapter 5,
"Using RJE in Programmatic Mode."

MPE/iX 5.0 Documentation