#!/bin/bash
index=0
set -x
# The new_hosts.txt file has lines in the format:
# hostname x.x.x.x y.y.y.y 
# being both ips
# The purpose is to read the file and store the values in an array
# for several different purposes, but it's not working
cat new_hosts.txt |cut -d\  -f1- | while read _host _ipold _ipnew; do
((index++))
echo "c=$index, ip_new=$_ipnew, server=$_host, ip old=$_ipold"
host[${index}]=$_host
ipnew[$index]=$_ipnew
ipold[$index]=$_ipold
done

# Why $index=0?
echo "RESUMEN FINAL ($index)"
for ((i=1;$i<40;i++)); do
  echo "servidor $i: ${host[$i]}, ip antigua: ${ipold[$i]}, ip nueva: ${ipnew[$i]}"
done