//sys/class/tty/tty21/subsystem/tty47/subsystem/tty48/subsystem/tty52/subsystem/tty55/subsystem/tty40/subsystem/tty45/subsystem/tty16/subsystem/tty3/subsystem/tty45/subsystem/tty14/subsystem/tty10/subsystem/tty30/subsystem/tty35/subsystem/tty36/dev