linux快速配置网络脚本

#!/bin/bash
echo -e "e[1;32;41m 您是否要使用DHCP,默认使用statice[0m"
read DHCP
echo "请输入您要设定的IP地址"
read IP
echo "请输入您要使用的DNS地址"
read DNS
echo "请输入您的网关"
read GATEWAY
echo "请输入您的子网掩码"
read NETMASK
function network_settings(){
    echo "TYPE=Ethernet" > /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "BOOTPROTO="$A"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "DEFROUTE="no"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "PEERDNS="yes"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "PEERROUTES="yes"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "IPV4_FAILURE_FATAL="no"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "IPV6INIT="yes"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "IPV6_AUTOCONF="no"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "IPV6_DEFROUTE="no"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "IPV6_PEERDNS="no"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "IPV6_PEERROUTES="no"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "IPV6_FAILURE_FATAL="no"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "NAME="ens33"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "UUID="0e6ca219-0d2e-4000-8f17-bf7424e46595"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "DEVICE="ens33"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "ONBOOT="yes"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "IPADDR="$IP"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "GATEWAY="$GATEWAY"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "NETMASK="$NETMASK"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
	echo "DNS="$DNS"" >> /etc/sysconfig/network-scripts/ifcfg-ens33
}
 if [ "$DHCP"  = "DHCP" ];then
                  A="dhcp"
				  
          else
                  A="static"
          fi

network_settings

echo "nameserver "$DNS"" >>/etc/resolv.conf

systemctl restart network

echo "设置成功"