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