ParametersChecker.sh

while [[ $# -gt 0 ]] && [[ ."$1" = .-* ]] ;
do
    opt="$1";
    shift;              #expose next argument
    case "$opt" in
        "--" ) break 2;;
        "-b" )
           BRANCH_PATH="$1"; shift;;
        "-branch" )     # alternate format
           BRANCH_PATH="$1"; shift;;
        "-p" )
           PORT="$1"; shift;;
        "-port" )
           PORT="$1"; shift;;
        "--help" )
           echo "Help?";
           exit 0;;
        *)
           echo "Incorrect Usage";
           exit 1;;
    esac
done