The bthost utility looks for information about Bluetooth hosts and Protocol Service Multiplexor (PSM) values. It gets this information from the /etc/bluetooth/hosts and /etc/bluetooth/protocols files.
In host mode, it simply converts between the host names and Bluetooth addresses. The argument can be either a host name or a Bluetooth address. The program first attempts to interpret it as a Bluetooth address. If this fails, it will treat it as a host name. A Bluetooth address consists of six hex bytes separated by a colon, e.g., "01:02:03:04:05:06". A host name consists of names separated by dots, e.g., "my.cell.phone".
In protocol mode, it simply converts between the Protocol Service Multiplexor names and assigned numbers. The argument can be either a Protocol Service Multiplexor name or an assigned number. The program first attempts to interpret it as an assigned number.
The options are as follows: