User`s guide

Useful Control-Key Sequences
background job (with
CTRL/B
), the foreground job (with
CTRL/F
), or another system
job (with
CTRL/X
), or a higher priority job gains control of the terminal.
CTRL/X
has no effect when used with a monitor that does not have system-job support
or when a SET TT NOFB command is in effect.
To Terminate Terminal Input (CTRL/Z)
CTRL/Z
terminates input when used with the terminal device handler (TT). It
echoes as ^Z on the terminal. The
CTRL/Z
itself does not appear in the input
buffer. Because
CTRL/Z
is a line terminator, you cannot delete it, once typed. If
TT is not being used,
CTRL/Z
has no effect.
2–4 Using RT–11 Commands