xfrun4 -V (return code: 1)
Unable to init server: Could not connect: Connection refused
xfce4-appfinder: Cannot open display: .
Type "xfce4-appfinder --help" for usage.
xfrun4 --help (return code: 0)
Usage:
xfrun4 [OPTION?]
Help Options:
-h, --help Show help options
--help-all Show all help options
--help-gtk Show GTK+ Options
Application Options:
-c, --collapsed Start in collapsed mode
-V, --version Print version information and exit
-r, --replace Replace the existing service
-q, --quit Quit all instances
--disable-server Do not try to use or become a D-Bus service
--display=DISPLAY X display to use