//sys/class/tty/tty21/subsystem/ttyS0/subsystem/tty30/subsystem/tty37/subsystem/tty9/subsystem/tty25/subsystem/tty31/subsystem/tty37/subsystem/tty47/subsystem/tty19/subsystem/tty2/subsystem/tty61/subsystem/tty7/subsystem/tty58/dev