Linux初学者的简易脚本----自动配IP

#!/bin/bash
#自动配IP 
# Author: tianzhaogao （E-mail: 296862380@qq.coom） 

line_num=$(cat /etc/sysconfig/network-scripts/ifcfg-eth0 | wc -l)

while [ "$line_num" -gt 7 ]
	do
		sed -i ‘8c \‘ /etc/sysconfig/network-scripts/ifcfg-eth0
		line_num=$(cat /etc/sysconfig/network-scripts/ifcfg-eth0 | wc -l)
	done
	
read -t 30 -p "Please input IP:" ipnum

n1=$(echo "$ipnum" | cut -d "." -f 1)
n2=$(echo "$ipnum" | cut -d "." -f 2)
n3=$(echo "$ipnum" | cut -d "." -f 3)
n4=$(echo "$ipnum" | cut -d "." -f 4)

if [ "$n1" -le 255 -a "$n2" -le 255 -a "$n3" -le 255 -a "$n4" -le 255 ];then
	echo -e IPADDR="$ipnum""\n"NETMASK=255.255.255.0"\n"GETWAY="$n1"\."$n2"\."$n3"\.1"\n"IPV6INIT=no"\n"USERCTL=no >> /etc/sysconfig/network-scripts/ifcfg-eth0
	sed -i ‘s/ONBOOT="no"/ONBOOT="yes"/g‘ /etc/sysconfig/network-scripts/ifcfg-eth0
	sed -i ‘s/BOOTPROTO=dhcp/BOOTPROTO=none/g‘ /etc/sysconfig/network-scripts/ifcfg-eth0
	sed -i ‘s/ONBOOT=no/ONBOOT=yes/g‘ /etc/sysconfig/network-scripts/ifcfg-eth0
	service network restart
fi

本文出自 “碧血青天” 博客，请务必保留此出处http://tianzhaogao.blog.51cto.com/4716906/1693194

Linux初学者的简易脚本----自动配IP

原文：http://tianzhaogao.blog.51cto.com/4716906/1693194