永久更改IP位址腳本

#! /bin/bash

ip=192.168.12.230  //要更改的IP位址

mask=255.255.255.0  //要更改的掩碼

gateway=192.168.12.1 //要更改的網關

oldip=`cat /etc/sysconfig/network-scripts/ifcfg-eth0  | grep IPADDR|awk -F "=" '{print $2}'`

oldmask=`cat /etc/sysconfig/network-scripts/ifcfg-eth0  | grep NETMASK|awk -F "=" '{print $2}'`

oldgateway=`cat /etc/sysconfig/network-scripts/ifcfg-eth0  | grep GATEWAY|awk -F "=" '{print $2}'`

sed -i 's/'$oldip'/'$ip'/g' /etc/sysconfig/network-scripts/ifcfg-eth0

sed -i 's/'$oldmask'/'$mask'/g' /etc/sysconfig/network-scripts/ifcfg-eth0

sed -i 's/'$oldgateway'/'$gateway'/g' /etc/sysconfig/network-scripts/ifcfg-eth0

service network restart