//sys/class/tty/tty21/subsystem/tty63/subsystem/tty58/subsystem/tty11/subsystem/tty44/subsystem/tty20/subsystem/tty12/subsystem/tty6/subsystem/tty28/subsystem/tty55/subsystem/tty39/subsystem/tty43/subsystem/tty55/subsystem/tty3/subsystem/ptmx/dev