#!/bin/bash

# Connect TCP socket to 127.0.0.1 port 1099 on handle 6.
exec 6<>/dev/tcp/127.0.0.1/1099

currentHCUC="unknown"

while read <&6
do
    # Show the line on standard output just for debugging.
    echo $REPLY >&1
    case $REPLY in
        *Rx\ PL\ HouseUnit:\ B6*)
            currentHCUC="B6"
        ;;

        *Rx\ PL\ House:\ B*On*)
            if [ "$currentHCUC" = "B6" ]
            then
                echo "pl a6 on" >&6
            fi
        ;;

        *Rx\ PL\ House:\ B*Off*)
            if [ "$currentHCUC" = "B6" ]
            then
                echo "pl a6 off" >&6
            fi
        ;;

    esac
done