linux下shell简单修改ip的脚本

#!/bin/bash
#2017-7-13
#by


ip_file= /etc/sysconfig/network-scripts/ifcfg-eth0
zt=` grep  "static"  $ip_file| wc  -l`
Bf_file= /data/ifcfg-eth/ ` date  "+%y_%m_%d" `/
IPADDR= "192.168.25.107"
netmask= "255.255.255.0"
getaway= "192.168.25.2"



#备份原来的配置文件
#Back up the original configuration file
if  [ ! -d $Bf_file ]; then
    mkdir  -p $Bf_file

fi

cp  $ip_file $Bf_file


#修改IP
#change ip

if  [ $zt - eq  1 ]; then
    sed  -i s #IPADDR.*#IPADDR=$IPADDR#g $ip_file
    sed  -i s #NETMASK.*#NETMASK=$netmask#g $ip_file
    sed  -i s #GATEWAY.*#GATEWAY=$getaway#g $ip_file
else
    sed  -i  s #BOOTPROTO.*#BOOTPROTO=static#g $ip_file
    cat  >>$ip_file<< EOF
IPADDR=$IPADDR
NETMASK=$netmask
GATEWAY=$getaway
EOF

fi

#重启服务并打印配置文件
#Restart the service and print the configuration file
sleep  2
service network restart
echo  "_________________________________"
cat  $ip_file
echo  "_________________________________"
ifconfig
echo  "________________________________"
ifconfig  eth0

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本文转自 天道酬勤VIP 51CTO博客，原文链接:http://blog.51cto.com/tdcqvip/1947248