//sys/class/tty/tty21/subsystem/tty58/subsystem/tty24/subsystem/ttyS2/subsystem/tty19/subsystem/ttyS3/subsystem/tty29/subsystem/tty50/subsystem/tty47/subsystem/tty7/subsystem/tty17/subsystem/tty40/subsystem/tty6/dev