ismpx

ismpx [option ]

Test whether standard input is running under layers . (Command name comes from "Is the m ultip lex or running?") Output is either yes (exit status 0) or no (exit status 1). Useful for shell scripts that download programs to a layers windowing terminal or that depend on screen size.

Option

-s

Suppress output and return exit status only.

Example

if ismpx -s
then jwin
fi