linux快速查看网卡配置信息以及IP地址

linux快速查看网卡配置信息以及IP地址。具体代码如下：

 

#!/bin/bash

function err(){
	if [ $? == 1 ];then
		echo " **"
	fi
}

if [ $# -eq 0 ]; then
	defnet="wlan0"
else
	defnet=$@
fi

for i in $defnet 
do
	echo -e "\033[42;37;5m $i info: \033[0m"
	echo -n "IPv4 address: " 
	ifconfig $i 2>/dev/null| egrep -o "inet addr:[^ ]*" | grep -o "[0-9.]*"
	err
	echo -n "IPv6 address: " 
	ifconfig $i 2>/dev/null| egrep -o "inet6 addr: [^ ]*" | cut -d " " -f 3| grep -o "[a-z0-9:/]*"
	err
	echo -n "MAC address: "
	ifconfig $i 2>/dev/null| egrep -o "addr .*" | grep -o "[A-Z0-9:]*"
	err
	echo -n "subnet Mask: "
	ifconfig $i 2>/dev/null| egrep -o "Mask:.*" | grep -o "[0-9.]*"
	err
	echo -n "Broadcast: "
	ifconfig $i 2>/dev/null| egrep -o "Bcast:[^ ]*" | grep -o "[0-9.]*"
	err
	echo -n "Receive Bytes: "
	ifconfig $i 2>/dev/null| egrep -o \'\([^()]*\)\'|head -1 
	err
	echo -n "Send Bytes: " 
	ifconfig $i 2>/dev/null| egrep -o \'\([^()]*\)\'|tail -1
	err
	echo -e "\033[44;37;5m $i Extra information:\033[0m"
	echo -n "外部IP： "
	curl ifconfig.me
	err
	echo -e
done
exit