#!/bin/bash
if [[ $# -lt 2 ]]
then
	echo "Usage: $0 <SRC_FILE> <DEST_FILE>"
	exit
fi
	if [[ ! -f $1 ]]
	then
		echo "File $1 does not exist!"
		exit
	fi
		if [[ -f $2 ]]
		then
			echo -n "File $2 already exists. Overwrite? Yes/No --> "
			read answer
			if [[ $answer != "Yes" ]]
			then
				exit
			fi
				cp /dev/null $2
		fi
			while read addr
			do
				x=$(expr substr $addr 1 8)
				y=$(expr substr $addr 9 8)
				z=$(expr substr $addr 17 8)
				t=$(expr substr $addr 25 8)
				echo "$((2#$x)).$((2#$y)).$((2#$z)).$((2#$t))" >> $2
			done < $1
			exit