qdbus -V (return code: 1)
Could not connect to D-Bus server: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
qdbus --help (return code: 0)
Usage: qdbus [--system | --address ADDRESS] [--literal] [servicename] [path] [method] [args]
servicename the service to connect to (e.g., org.freedesktop.DBus)
path the path to the object (e.g., /)
method the method to call, with or without the interface
args arguments to pass to the call
With 0 arguments, qdbus will list the services available on the bus
With just the servicename, qdbus will list the object paths available on the service
With service name and object path, qdbus will list the methods, signals and properties available on the object
Options:
--system connect to the system bus
--address ADDRESS connect to the given bus
--literal print replies literally