//sys/class/tty/tty21/subsystem/tty24/subsystem/tty21/subsystem/tty61/subsystem/tty11/subsystem/tty8/subsystem/tty57/subsystem/tty40/subsystem/tty43/subsystem/tty21/subsystem/ttyS1/subsystem/tty32/subsystem/ttyS0/subsystem/tty39/dev