#!/bin/bash
        while [ $required_field_match = false ]; do
                while [ -z $required_field ]; do
                        echo -e "\nSpecify a required field: ";
                        read required_field;
                done;

                while [ -z $required_field_confirm ]; do
                        echo -e "\nConfirm the required field";
                        read required_field_confirm;
                done;

                if [ $required_field = $required_field_confirm ]; then
                        required_field_match=true;
                else
                        unset required_field;
                        unset required_field_confirm;
                        echo -ne "\nInvalid input. Require fields do not match.";
                fi
        done;