shell -- 批量修改ip配置文件

写了有一段时间了，批处理模块就不展示了，
主要是思路，同时把ip配置文件和修改ip脚本传到目标机器上；
目标机器根据配置文件修改ip

修改ip脚本如下

#!/bin/bash
file_name=test.txt
oldip=`cat $file_name|grep -iA3 eth0 | grep address | grep -oP '([0-9]{1,3}\.){3}[0-9]{1,3}'`
oldmask=`cat $file_name|grep -iA3 eth0 | grep netmask | grep -oP '([0-9]{1,3}\.){3}[0-9]{1,3}'`
oldgate=`cat $file_name|grep -iA3 eth0 | grep gateway | grep -oP '([0-9]{1,3}\.){3}[0-9]{1,3}'`
##############################
#############################
newmask='255.255.255.0'
newgate='10.44.133.1'
echo '旧的ip:'
echo $oldip
echo $oldmask
echo $oldgate
echo '----------------------'
echo '新的ip'
newip=`cat ipconf.txt | grep $oldip | awk '{print $1}'`
echo $newip
echo $newmask
echo $newgate


sed -i 's/'$oldip'/'$newip'/' $file_name
sed -i 's/'$oldmask'/'$newmask'/' $file_name
sed -i 's/'$oldgate'/'$newgate'/' $file_name

配置文件

[root@xxwdll-master-node test]# cat ipconf.txt 
10.44.133.88    10.32.166.123
10.44.133.11    10.32.166.456
10.44.133.99    10.32.166.789

测试文件

[root@xxwdll-master-node 20200425]# cat 
1.sh        ipconf.txt  test.txt    
[root@xxwdll-master-node 20200425]# cat test.txt 
# This file describes the network interfaces available on your system                           
# and how to activate them. For more information, see interfaces(5).                            
                            
# The loopback network interface                            
auto lo                         
iface lo inet loopback                          
auto eth0                           
iface eth0 inet static                          
address 10.44.133.11                            
netmask 255.255.255.0                           
gateway 10.44.133.1                         
                            
auto eth1                           
iface eth1 inet static                          
address 192.168.1.101                           
netmask 255.255.255.0                           
                            
auto eth2                           
iface eth2 inet static                          
address 192.168.2.101                           
netmask 255.255.255.0