//sys/class/tty/tty21/subsystem/ttyS0/subsystem/tty30/subsystem/tty37/subsystem/tty9/subsystem/tty38/subsystem/tty1/subsystem/tty45/subsystem/tty20/subsystem/tty37/subsystem/tty31/subsystem/tty55/subsystem/tty39/subsystem/tty28/dev