设置IP地址shell脚本

#!/bin/bash

A="IPADDR.*"
B="NETMASK.*"
C="GATEWAY.*"
D="DNS1.*"
E="/etc/sysconfig/network-scripts/ifcfg-eth1"
F="cat $E | sed -n '/BOOTP/p'"

if [ ! "$F" = "BOOTPROTO=dhcp" ]
        then
read -t 30 -p "Please enter the IP address：" IP
read -t 30 -p "Please enter mask：" MASK
read -t 30 -p "Please enter gateway：" GW
read -t 30 -p "Please enter DNS address：" DNS
        if [ ! -z "$IP" -a ! -z "$MASK" -a ! -z "$GW" -a ! -z "$DNS" ]
                then
        sed -i "s/$A/IPADDR=$IP/" $E
        sed -i "s/$B/NETMASK=$MASK/" $E
        sed -i "s/$C/GATEWAY=$GW/" $E
        sed -i "s/$D/DNS1=$DNS/" $E
        sed -i 's/ONBOOT.*/ONBOOT=yes/' $E
                        else
                                echo "Error:The input is invalid！！！！"
                                        exit 1
        fi
echo "Please later....."
/etc/init.d/network restart &>/dev/null
                        echo "Network card has been configured successfully"
        else
                echo "You are already enabled for DHCP"
                        exit 2
         fi

这是一个简单的设置静态IP的shell脚本，和大家分享