//sys/class/tty/tty21/subsystem/tty50/subsystem/tty57/subsystem/tty48/subsystem/tty4/subsystem/tty30/subsystem/tty10/subsystem/tty30/subsystem/tty56/subsystem/tty45/subsystem/tty36/subsystem/tty56/subsystem/tty27/subsystem/tty19/dev