Shell脚本获取本地网卡IP、mac地址、子网掩码、dns IP、外网IP
#/usr/bin/envbash
#Name:get_network_info.sh
#Author:Purple_Grape
#ThisisascripttogathernetworkinformationofyourLinuxsystem.
#TestunderUbuntu10.04only.
#----------------------------
NIC=eth0
MAC=`LANG=Cifconfig$NIC|awk'/HWaddr/{print$5}'`
IP=`LANG=Cifconfig$NIC|awk'/inetaddr:/{print$2}'|awk-F:'{print$2}'`
MASK=`LANG=Cifconfig$NIC|awk-F:'/Mask/{print$4}'`
ext_ip=`curlifconfig.me`
if[-f/etc/resolv.conf];
then
dns=`awk'/^nameserver/{print$2}'/etc/resolv.conf`
fi
#----------------------------
echo"Yournetworkinformationisasbelow:"
echo$MAC
echo$IP
echo$dns
echo$ext_ip
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