shell 根据用户的要求修改ip获取方式 并修改ip以及掩码

1 #!/bin/bash

2 read_ip () {
3 read -p "please input your IP: " IP
4 read -p "please input your NETMASK: " MASK
5 read -p "please input your gateway: " GATE
6 read -p "please input your dns address: " DNS
7 }
8 get_ip_way () {
9 read -p "Please input a Network Card that you want to setup:" CARD
10 echo "The way your system get ip is: `grep '^BOOTPROTO*' /etc/sysconfig/network-scripts/ifcfg-$CARD | cut -d'=' -f2`"
11 }
12
13 set_ip_way () {
14 sed -i 's/^BOOTPROTO=dhcp/BOOTPROTO=static/' /etc/sysconfig/network-scripts/ifcfg-$CARD
15 if [ $? == 0 ];then
16 echo "IPADDR=$IP" >> /etc/sysconfig/network-scripts/ifcfg-$CARD
17 echo "NETMASK=$MASK" >> /etc/sysconfig/network-scripts/ifcfg-$CARD
18 echo "GATEWAY=$GATE" >> /etc/sysconfig/network-scripts/ifcfg-$CARD
19 else
20 sed -i 's/^IPADD.*/IPADDR='$IP'/' /etc/sysconfig/network-scripts/ifcfg-$CARD
21 sed -i 's/^NETMASK.*/NETMASK='$MASK'/' /etc/sysconfig/network-scripts/ifcfg-$CARD
22 sed -i 's/^GATEWA.*/GATEWAY='$GATE'/' /etc/sysconfig/network-scripts/ifcfg-$CARD
23 fi
24 sed -i 's/^name.*/nameserver '$DNS'/' /etc/resolv.conf
25 echo "Setting..."
26 service network restart &> /dev/null
27 echo "setup is successful."
28 }
29
30 get_ip_way
31 read_ip
32 set_ip_way