想了解Shell脚本获取本地网卡IP、mac地址、子网掩码、dns IP、外网IP的相关内容吗，在本文为您仔细讲解Shell脚本本地网卡IP、mac地址等的相关知识和一些Code实例，欢迎阅读和指正，我们先划重点：Shell脚本,本地网卡IP,mac地址,子网掩码,dns,外网IP，下面大家一起来学习吧。
#/usr/bin/env bash
# Name: get_network_info.sh
# Author: Purple_Grape
# This is a script to gather network information of your Linux system.
# Test under Ubuntu 10.04 only.
#----------------------------
NIC=eth0
MAC=`LANG=C ifconfig $NIC | awk '/HWaddr/{ print $5 }' `
IP=`LANG=C ifconfig $NIC | awk '/inet addr:/{ print $2 }' | awk -F: '{print $2 }'`
MASK=`LANG=C ifconfig $NIC | awk -F: '/Mask/{print $4}'`
ext_ip=`curl ifconfig.me`
if [ -f /etc/resolv.conf ];
then
dns=`awk '/^nameserver/{print $2}' /etc/resolv.conf `
fi
#----------------------------
echo "Your network information is as below:"
echo $MAC
echo $IP
echo $dns
echo $ext_ip
