Shell script gets the MAC address of the intranet host in bulk

This shell script is used to obtain the MAC address of the intranet host of the 192.168.4.0/24 network segment in bulk

#!/bin/bash#Author:Jink#这脚本使用ping和arp命令获取内网主机的MAC地址，查询到的MAC地址写入到文件中myping(){    ping -c2 -w1 -i0.5 $1 &>/dev/null    if [ $? -eq 0 ];then        arp $1 | tail -1 | awk ‘{print $1,$3}‘>> /tmp/mactable.txt    fi}for i in {1..254}do    myping 192.168.4.$i &done

Shell script gets the MAC address of the intranet host in bulk