补充：这是对于第一次添加的网卡有效，如果需要重复添加和删除后自动配置，需要更改脚本，改为根据ip a命令的信息来修改。

复制代码 代码如下:

#!/bin/bash

#update:2013-02-25

#author:ihuotui

#version 0.1

cdate=$(date '+%Y%m%d')

num=$(ifconfig -a | grep eth | wc -l)

echo "ethX=" $num >> ethX

for ((n=1;n<${num};n++))

do

if [ -e /etc/sysconfig/network-scripts/ifcfg-eth${n} ] ; then

sed -i '/HWADDR/d' /etc/sysconfig/network-scripts/ifcfg-eth${n}

ifconfig -a | grep "eth${n}" | awk '{print "HWADDR=""$5"""}' >> /etc/sysconfig/network-scripts/ifcfg-eth${n}

else

touch /etc/sysconfig/network-scripts/ifcfg-eth${n}

ifconfig -a | grep "eth${n}" | awk '{print "HWADDR=""$5"""}' >> /etc/sysconfig/network-scripts/ifcfg-eth${n}

echo NM_CONTROLLED=""yes"" >> /etc/sysconfig/network-scripts/ifcfg-eth${n}

echo ONBOOT=""yes"" >> /etc/sysconfig/network-scripts/ifcfg-eth${n}

echo TYPE=""Ethernet"" >> /etc/sysconfig/network-scripts/ifcfg-eth${n}

echo BOOTPROTO=""dhcp"" >> /etc/sysconfig/network-scripts/ifcfg-eth${n}

echo UUID=""2460e474-fad8-4b46-baba-da6f45ae158"${n}""" >> /etc/sysconfig/network-scripts/ifcfg-eth${n}

echo DEVICE=""eth"${n}""" >> /etc/sysconfig/network-scripts/ifcfg-eth${n}

continue

fi

done