自动生成linux网卡配置脚本分享

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