echo "First invocation"
dbus-send --print-reply --type=method_call \
  --dest=org.freedesktop.Tracker1.Extract \
  /org/freedesktop/Tracker1/Extract \
  org.freedesktop.Tracker1.Extract.GetPid

echo "-------------------"
echo "Second invocation"
dbus-send --print-reply --type=method_call \
  --dest=org.freedesktop.Tracker1.Extract \
  /org/freedesktop/Tracker1/Extract \
  org.freedesktop.Tracker1.Extract.GetPid
