lan

#!/bin/bash

greenB='\x1b[1;32m'; end='\x1b[0m'; redB='\x1b[1;31m'; blueB='\x1b[1;34m'
info=`ip route|grep -m 1 '0/24'`
echo -e "本机IP是：$greenB`echo $info|awk '{print $9}'`$end"
ip=`echo $info|awk '{print $1}'`
echo "扫描 $ip 段"
if [ $1 ]; then
	# 端口，MAC地址
	sudo /usr/bin/nmap -sS $ip|sed -e "/^Interest/ s/[1-9][0-9.]\{6,14\}/${greenB}&${end}/g" -e "/open/ s/[^\ ]*$/${redB}&${end}/g" -e "/^MAC/ s/[0-9:A-F]\{17\}/${blueB}&${end}/g"
else
	# 如果对方关闭了icmp，就探测不到
	/usr/bin/nmap -sP $ip|sed "s/[1-9][0-9.]\{6,14\}/${greenB}&${end}/g"
fi