结果会在桌面生成一个mac_list.txt
#!/bin/bash#获取网络中所有主机的MAC地址，把MAC地址输出到一个文件中（mac-list.txt）ip=$(ifconfig|grep "Bcast"|awk -F: '{print $2}'|awk '{print $1}'|cut -d. -f1,2,3)eth=$(ifconfig|grep eth|awk '{print $1}')for i in {1..255};doReply=$(arping $ip.$i -I $eth -c 2|grep reply|awk '{print $2}')if [ "$Reply"x = "reply"x ];thenip1=$(arping $ip.$i -I $eth -c 2|grep "Unicast reply from"|awk '{print $4}')mac1=$(arping $ip.$i -I $eth -c 2|grep "Unicast reply from"|awk '{print $5}'|awk -F[ '{print $2}'|awk -F] '{print $1}')echo $ip1-----$mac1 >> /root/桌面/mac_list.txtfidone
