Shell脚本获取本地网卡IP、mac地址、子网掩码、dns IP、外网IP

#/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