一键修改IP多实例

一键修改IP多实例-v1

#!/bin/bash
#2020-03-01
#auto change ip
#By Flyaway
######################
grep "dhcp" /etc/sysconfig/network-scripts/ifcfg-ens33
if [ $? -eq 0 ];then
cat >/etc/sysconfig/network-scripts/ifcfg-ens33 <<EOF
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
DEVICE=ens33
ONBOOT=yes
IPADDR=192.168.1.19
PREFIX=24
GATEWAY=192.168.1.1
DNS1=114.114.114.114
EOF
fi
cat /etc/sysconfig/network-scripts/ifcfg-ens33
systemctl restart network
ifconfig

一键修改IP多实例-v2

#!/bin/bash
#2020-03-01
#auto change ip
#By Flyaway
######################
ETH_FIX="24"
ETH_NAME="ens33"
ETH_WAY="192.168.1.1"
ETH_IP="192.168.1.19"
ETH_DNS="114.114.114.114"
ETH_BAK="/data/backup/$(date +%Y%m%d%H%M%S)"
ETH_DIR="/etc/sysconfig/network-scripts/"
cd $ETH_DIR
if [ ! -d $ETH_BAK ];then
    mkdir -p $ETH_BAK
fi
\cp ifcfg-$ETH_NAME $ETH_BAK
grep "dhcp" ifcfg-$ETH_NAME
if [ $? -eq 0 ];then
cat >ifcfg-$ETH_NAME <<EOF
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
DEVICE=$ETH_NAME_
ONBOOT=yes
IPADDR=$ETH_IP
PREFIX=$ETH_FIX
GATEWAY=$ETH_WAY
DNS1=$ETH_DNS
EOF
fi
cat ifcfg-$ETH_NAME
systemctl restart network
ifconfig $ETH_NAME

一键修改IP多实例-v3

#!/bin/bash
#2020-03-01
#auto change ip
#By Flyaway
######################
ETH_IP="$1"
ETH_FIX="24"
ETH_NAME="ens33"
ETH_WAY="192.168.1.1"
ETH_DNS="114.114.114.114"
ETH_DIR="/etc/sysconfig/network-scripts/"
ETH_BAK="/data/backup/`date +%Y%m%d%H%M%S`"
if [ $# -eq 0 ];then
    echo -e "\033[32m------------------------\033[0m"
    echo -e "\033[32mUsage:{/bin/sh $0 192.168.1.xxx}\033[0m"
    exit 1
fi
cd $ETH_DIR
if [ ! -d $ETH_BAK ];then
    mkdir -p $ETH_BAK
fi
\cp ifcfg-$ETH_NAME $ETH_BAK
#CHECK_NUM=`grep "dhcp" ifcfg-$ETH_NAME|wc -l`
#if [ $CHECK_NUM -eq 1 ];then
grep "dhcp" ifcfg-$ETH_NAME
if [ $? -eq 0 ];then
cat >ifcfg-$ETH_NAME <<EOF
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
DEVICE=$ETH_NAME_
ONBOOT=yes
IPADDR=$ETH_IP
PREFIX=$ETH_FIX
GATEWAY=$ETH_WAY
DNS1=$ETH_DNS
EOF
fi
cat ifcfg-$ETH_NAME
systemctl restart network
ifconfig $ETH_NAME

一键修改IP多实例-v4

#!/bin/bash
#2020-03-01
#auto change ip
#By Flyaway
######################
ETH_IP="$1"
ETH_FIX="24"
ETH_NAME="ens33"
ETH_WAY="192.168.1.1"
ETH_DNS="114.114.114.114"
ETH_DIR="/etc/sysconfig/network-scripts/"
ETH_BAK="/data/backup/`date +%Y%m%d%H%M%S`"
if [ $# -eq 0 ];then
    echo -e "\033[32m------------------------\033[0m"
    echo -e "\033[32mUsage:{/bin/sh $0 192.168.1.xxx}\033[0m"
    exit 1
fi
cd $ETH_DIR
if [ ! -d $ETH_BAK ];then
    mkdir -p $ETH_BAK
fi
\cp ifcfg-$ETH_NAME $ETH_BAK
#CHECK_NUM=`grep "dhcp" ifcfg-$ETH_NAME|wc -l`
#if [ $CHECK_NUM -eq 1 ];then
grep "dhcp" ifcfg-$ETH_NAME
if [ $? -eq 0 ];then
cat >ifcfg-$ETH_NAME <<EOF
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
DEVICE=$ETH_NAME_
ONBOOT=yes
IPADDR=$ETH_IP
PREFIX=$ETH_FIX
GATEWAY=$ETH_WAY
DNS1=$ETH_DNS
EOF
else
read -p  "The server static ipaddr alreaby exist,please ensure change other static ip?" INPUT
if [ $INPUT == "yes" -o $INPUT == "y" -o $INPUT == "Y" ];then
cat >ifcfg-$ETH_NAME <<EOF
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
DEVICE=$ETH_NAME_
ONBOOT=yes
IPADDR=$ETH_IP
PREFIX=$ETH_FIX
GATEWAY=$ETH_WAY
DNS1=$ETH_DNS
EOF
fi
fi
cat ifcfg-$ETH_NAME
systemctl restart network
ifconfig $ETH_NAME

一键修改IP多实例-v5

#!/bin/bash
#2020-03-01
#auto change ip
#By Flyaway
######################
ETH_IP="$1"
ETH_FIX="24"
ETH_NAME="ens33"
ETH_WAY="192.168.1.1"
ETH_DNS="114.114.114.114"
ETH_DIR="/etc/sysconfig/network-scripts/"
ETH_BAK="/data/backup/`date +%Y%m%d%H%M%S`"
function change_ip(){
cat >ifcfg-$ETH_NAME <<EOF
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
DEVICE=$ETH_NAME_
ONBOOT=yes
IPADDR=$ETH_IP
PREFIX=$ETH_FIX
GATEWAY=$ETH_WAY
DNS1=$ETH_DNS
EOF
cat ifcfg-$ETH_NAME
echo -e "\033[32m IP 修改成功请查看：\033[0m"
}
if [ $# -eq 0 ];then
    echo -e "\033[32m------------------------\033[0m"
    echo -e "\033[32mUsage:{/bin/sh $0 192.168.1.xxx}\033[0m"
    exit 1
fi
cd $ETH_DIR
if [ ! -d $ETH_BAK ];then
    mkdir -p $ETH_BAK
fi
\cp ifcfg-$ETH_NAME $ETH_BAK
#CHECK_NUM=`grep "dhcp" ifcfg-$ETH_NAME|wc -l`
#if [ $CHECK_NUM -eq 1 ];then
grep "dhcp" ifcfg-$ETH_NAME
if [ $? -eq 0 ];then
    change_ip
else
    echo -e "\033[32m------------------------\033[0m"
    cat ifcfg-$ETH_NAME
    read -p  "The server static ipaddr alreaby exist,please ensure change other static ip?" INPUT
    if [ $INPUT == "yes" -o $INPUT == "y" -o $INPUT == "Y" ];then
        change_ip
    fi
fi
#cat ifcfg-$ETH_NAME
systemctl restart network
#ifconfig $ETH_NAME

一键修改IP多实例-v6

#!/bin/bash
#2020-03-01
#auto change ip
#By Flyaway
######################
ETH_IP="$1"
ETH_FIX="24"
ETH_NAME="ens33"
ETH_WAY="192.168.1.1"
ETH_DNS="114.114.114.114"
ETH_DIR="/etc/sysconfig/network-scripts/"
ETH_BAK="/data/backup/`date +%Y%m%d%H%M%S`"
#定义函数：
function change_ip(){
cat >ifcfg-$ETH_NAME <<EOF
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
DEVICE=$ETH_NAME
ONBOOT=yes
IPADDR=$ETH_IP
PREFIX=$ETH_FIX
GATEWAY=$ETH_WAY
DNS1=$ETH_DNS
EOF
cat ifcfg-$ETH_NAME
echo -e "\033[32m IP 修改成功请查看：\033[0m"
}
#判断$1是否输入IP，不输入则退出：
if [ $# -eq 0 ];then
    echo -e "\033[32m------------------------\033[0m"
    echo -e "\033[32mUsage:{/bin/sh $0 192.168.1.xxx}\033[0m"
    exit 1
fi
#判断目录是否存在，不存在则创建：
cd $ETH_DIR
if [ ! -d $ETH_BAK ];then
    mkdir -p $ETH_BAK
fi
#修改IP之前拷贝原网卡文件：
\cp ifcfg-$ETH_NAME $ETH_BAK
#CHECK_NUM=`grep "dhcp" ifcfg-$ETH_NAME|wc -l`
#if [ $CHECK_NUM -eq 1 ];then
grep "dhcp" ifcfg-$ETH_NAME
if [ $? -eq 0 ];then
    #引用函数：(动态IP修改为静态IP)
    change_ip
else
    #静态IP修改为其他静态IP：
    echo -e "\033[32m------------------------\033[0m"
    cat ifcfg-$ETH_NAME
    read -p  "The server static ipaddr alreaby exist,please ensure change other static ip?" INPUT
    if [ $INPUT == "yes" -o $INPUT == "y" -o $INPUT == "Y" ];then
        change_ip
    fi
fi
#实现修改之前确认是否修改，如果不修改需要恢复原IP信息：
read -p "The server ip change succeded,restart network.service yes or no?" INPUT
if [ $INPUT == "yes" -o $INPUT == "y" -o $INPUT == "Y" ];then
    systemctl restart network
else
    \cp $ETH_BAK/ifcfg-$ETH_NAME $ETH_DIR
    cat ifcfg-$ETH_NAME
fi

一键修改IP多实例-v7

#!/bin/bash
#2020-03-01
#auto change ip
#By Flyaway
######################
ETH_IP="$1"
ETH_FIX="24"
ETH_NAME="ens33"
ETH_WAY="192.168.1.1"
ETH_DNS="114.114.114.114"
ETH_DIR="/etc/sysconfig/network-scripts/"
ETH_BAK="/data/backup/`date +%Y%m%d%H%M%S`"
#定义函数：
function change_ip(){
cat >ifcfg-$ETH_NAME <<EOF
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
DEVICE=$ETH_NAME
ONBOOT=yes
IPADDR=$ETH_IP
PREFIX=$ETH_FIX
GATEWAY=$ETH_WAY
DNS1=$ETH_DNS
EOF
cat ifcfg-$ETH_NAME
echo -e "\033[32m IP 修改成功请查看：\033[0m"
}
#判断$1是否输入IP，不输入则退出：
if [ $# -eq 0 ];then
    echo -e "\033[32m------------------------\033[0m"
    echo -e "\033[32mUsage:{/bin/sh $0 请输入将需要修改的IP：}\033[0m"
    exit 1
fi
#while 判断用户输入的IP是否正确，如果不正确，让其循环输入，直到正确为止:
while true
do
    IP1=$(echo $ETH_IP|cut -d"." -f1)
    IP2=$(echo $ETH_IP|cut -d"." -f2)
    IP3=$(echo $ETH_IP|cut -d"." -f3)
    IP4=$(echo $ETH_IP|cut -d"." -f4)
    if [ ! -z $IP1 ];then
        if [ $IP1 -ge 1 -a $IP1 -le 255 -a $IP2 -ge 0 -a  $IP2 -le 255 -a $IP3 -ge 0 -a $IP3 -le 255 -a $IP4 -ge 0 -a $IP4 -le 255 ];then
            echo $ETH_IP
            break
        else
            echo -e "\033[32m--------------------\033[0m"
            read -p "Please retry input server ip: " ETH_IP
        fi
    fi
    read -p "Please retry input server ip: " ETH_IP
done
#判断目录是否存在，不存在则创建：
cd $ETH_DIR
if [ ! -d $ETH_BAK ];then
    mkdir -p $ETH_BAK
fi
#修改IP之前拷贝原网卡文件：
\cp ifcfg-$ETH_NAME $ETH_BAK
#CHECK_NUM=`grep "dhcp" ifcfg-$ETH_NAME|wc -l`
#if [ $CHECK_NUM -eq 1 ];then
grep "dhcp" ifcfg-$ETH_NAME
if [ $? -eq 0 ];then
    #引用函数：(动态IP修改为静态IP)
    change_ip
else
    #静态IP修改为其他静态IP：
    echo -e "\033[32m------------------------\033[0m"
    cat ifcfg-$ETH_NAME
    read -p  "The server static ipaddr alreaby exist,please ensure change other static ip?" INPUT
    if [ $INPUT == "yes" -o $INPUT == "y" -o $INPUT == "Y" ];then
        change_ip
    fi
fi
#实现修改之前确认是否修改，如果不修改需要恢复原IP信息：
read -p "The server ip change succeded,restart network.service yes or no?" INPUT
if [ $INPUT == "yes" -o $INPUT == "y" -o $INPUT == "Y" ];then
    systemctl restart network
else
    \cp $ETH_BAK/ifcfg-$ETH_NAME $ETH_DIR
    cat ifcfg-$ETH_NAME
fi