//sys/class/tty/tty0/subsystem/tty61/subsystem/tty33/subsystem/tty58/subsystem/tty31/subsystem/tty16/subsystem/tty15/subsystem/tty18/subsystem/tty13/subsystem/tty36/subsystem/ttyS0/subsystem/ttyS0/subsystem/tty44/subsystem/tty0/subsystem/tty35/subsystem/tty41/subsystem/ttyS2/subsystem/tty19/subsystem/tty60/subsystem/tty63/subsystem/tty21/dev