rfcomm [ options ] < command > < dev >
rfcomm is used to set up, maintain, and inspect the RFCOMM configuration of the Bluetooth subsystem in the Linux kernel. If no command is given, or if the option -a is used, rfcomm prints information about the configured RFCOMM devices.
If all is specified for the RFCOMM device, then all bindings will be removed.
Written by Marcel Holtmann <firstname.lastname@example.org>.