This small code in bash can convert your address into a valid address for BOF

AddressConverter.sh

#!/bin/bash
if [ $# -ne 1 ]; then
        echo "Must enter one parameter"
        exit 1
fi
if [ $(expr length $1) -ne 8 ]; then
        echo "Length is not 8"
        exit 2
fi
addr=$(echo $1 | sed 's|..|\\x&|g')
declare finalA=""
declare -i cont=5
while [ ${cont} -ne 1 ]; do
        finalA+="\\"`echo ${addr} | cut -d'\\' -f${cont}`
        let cont=${cont}-1
done
echo $finalA