#!/bin/bash
if [[ $# -lt 2]]
then ech"Usage: ./bin2dot-with-read.sh <SRC_FILE> <DEST_FILE>"
exit
fi
if [[ $# -f $1]]
then 
echo "File $1 does not exist !"
exit
fi
if [[ $# -f $2]]
thenecho -n "$2 exists. Overwrite ? Yes/No --> "
read answer 
if [[answer == Yes]]
then cp /dev/null $2
else done
fi
lignes = $(cat $1)
while read i
do 
    x = $(expr substr $i 1 8)
    y = $(expr substr $i 9 8)
    z = $(expr substr $i 17 8)
    t = $(expr substr $i 25 8)
    echo "$((2#$x)).$((2#$y)).$((2#$z)).$((2#$t))"
  done <$1 >$2
  exit