#!/bin/bash for range in {140..150}; do IP="192.168.0.$range" ping -w 1 $IP 2>&1 >/dev/null arp -a | grep $IP | grep ':' 2>&1 >/dev/null && echo -e "\033[45;1;32m $IP : ON \033[0m" || echo -e "\033[44;1;33m $IP : OFF \033[0m" done