Get-multi-value.sh

#!/bin/bash
set -x

a="192.168.1.34 192.168.1.35 192.168.1.36 192.168.1.37"
#a=""
echo $a

e=`echo $a | wc -w`
echo $e

if [ -z $a]; then
        :
else
        for ((n=1; n<=$e; n++))
        do
                echo "wow$n"
                f=`echo $a | awk '{print $'$n'}'`
                echo $f
                g=`echo $f | cut -d'.' -f4`
                echo $g
                ifconfig eth0:$g $f  netmask 255.255.255.0
        done
fi