AT&T UNIX™PC Unix System V Users Manual - tenox

ISMPX(l) ISMPX(l)
NAME
ismpx - return windowing terminal state
SYNOPSIS
ismpx [-s]
DESCRIPTION
The ismpx command reports whether its standard input is connected to a
multiplexed xt(7) channel; i.e., whether it's running under layers(!) or
not It is useful for shell scripts that download programs to a windowing
terminal or depend on screen size.
ismpx prints yes and returns 0 if invoked under layers(!), and prints no
and returns 1 otherwise.
-s Do not print anything; just return the proper exit status.
EXIT STATUS
Returns 0 if invoked under layers(!), 1 if not.
SEE ALSO
layers(!), jwin(l).
xt(7) in the System Administrator's Reference Manual .
EXAMPLE
if isrnpx -s
then
jwin
fi
- 1-