判断IP是否规范并添加或修改IP地址的shell脚本
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#!/bin/bash
read -p "请输入ip:" IP
read -p "请输入掩码:" MASK
#read -p "IP ADDRESS:" IPADD
echo $IP > /tmp/tmpserverip
echo $IP | grep "^[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}$" > /dev/null
if [ $? = 1 ]
then
echo "error ip,please enter correct"
exit 1
else
a=`awk -F. '{print $1}' /tmp/tmpserverip`
b=`awk -F. '{print $2}' /tmp/tmpserverip`
c=`awk -F. '{print $3}' /tmp/tmpserverip`
d=`awk -F. '{print $4}' /tmp/tmpserverip`
if [ $a -ge 255 ]||[ $a -le 0 ]
then
echo "a:error ip"
exit 1
else
echo a > /tmp/tang
fi
if [ $b -ge 255 ] || [ $b -lt 0 ]
then
echo "b:error ip"
exit 1
else
echo b >> /tmp/tang
fi
if [ $c -ge 255 ] || [ $c -lt 0 ]
then
echo "c:error ip"
exit 1
else
echo c >> /tmp/tang
fi
if [ $d -ge 255 ] || [ $d -le 0 ]
then
echo "d:error ip"
exit 1
else
echo d >> /tmp/tang
fi
fi
sed -i "s/ONBOOT=no/ONBOOT=yes/g" /etc/sysconfig/network-scripts/ifcfg-eth0
sed -i "s/BOOTPROTO=dhcp/BOOTPROTO=static/g" /etc/sysconfig/network-scripts/ifcfg-eth0
sed -i 's/NM_CONTROLLED=yes/NM_CONTROLLED=no/g' /etc/sysconfig/network-scripts/ifcfg-eth0
grep IPADDR /etc/sysconfig/network-scripts/ifcfg-eth0 &> /dev/null
if [ $? -eq 0 ]
then
sed -i "s/IPADDR=*.*.*.*/IPADDR=$IP/g" /etc/sysconfig/network-scripts/ifcfg-eth0
sed -i "s/NETMASK=*.*.*.*/NETMASK=$MASK/g" /etc/sysconfig/network-scripts/ifcfg-eth0
else
echo "IPADDR=$IP" >> /etc/sysconfig/network-scripts/ifcfg-eth0
echo "NETMASK=$MASK" >> /etc/sysconfig/network-scripts/ifcfg-eth0
fi
/etc/init.d/network restart