#!/bin/bash

if [[ $# -lt 2 ]]
then
echo "Usage: $0 <mumarg1> <numarg2>" 
exit
fi

if [[ -f $2 ]]
then
read -p "File $2 exists. Overwrite ? Yes/ No --->" answer
exit
fi
if [[ $answer != "Yes" ]]
then
	exit
fi
cp /dev/null $2
fi 

ARG=$1
ARG2=$2
addr=$1

for addr in (cat "$ARG");

do 
	
binaire1=$(expr substr $addr 1 8)
octet1=$((2#$binaire1)) 
binaire2=$(expr substr $addr 9 8)
octet2=$((2#$binaire2)) 
binaire3=$(expr substr $addr 17 8)
octet4=$((2#$binaire3)) 
binaire4=$(expr substr $addr 25 8)
octet4=$((2#$binaire4)) 

echo addr_dot="$octet1.$octet2.octet3.octet4" >> $ARG2

done
exit