modify.sh
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#!/bin/bash
if [[ $# == 3 ]]
then
type=inner
ip=$1
netmask=$2
whether_reboot=$3
elif [[ $# == 4 ]]
then
type=out
ip=$1
netmask=$2
gateway=$3
whether_reboot=$4
else
echo Modify IP ERROR!
exit 0
fi
if [[ $type == inner ]]
then
net=`egrep -o '^auto eth0$' /etc/network/interfaces`
if [[ $net ]]
then
sed -i /"^auto eth0$"/,/"^address.*$"/s/"address.*$"/"address $ip"/ /etc/network/interfaces
sed -i /"^auto eth0$"/,/"^netmask.*$"/s/"^netmask.*$"/"netmask $netmask"/ /etc/network/interfaces
sed -i /"^auto eth0$"/,/"^auto eth1"/s/"^gateway"/"#gateway"/ /etc/network/interfaces
fi
elif [[ $type == out ]]
then
net=`egrep -o '^auto eth1$' /etc/network/interfaces`
if [[ $net ]]
then
sed -i /"^auto eth1$"/,/"^address.*$"/s/"address.*$"/"address $ip"/ /etc/network/interfaces
sed -i /"^auto eth1$"/,/"^netmask.*$"/s/"^netmask.*$"/"netmask $netmask"/ /etc/network/interfaces
sed -i /"^auto eth1$"/,/"^gateway.*$"/s/"^gateway.*$"/"gateway $gateway"/ /etc/network/interfaces
fi
fi
if [[ $whether_reboot = reboot ]]
then
reboot_time=`date -d "1 minutes" +%H:%M`
echo "IP($ip)修改成功，系统将会在$reboot_time重启"
shutdown -r $reboot_time
else
echo "IP($ip)修改成功, 请在合适的时间重启系统(reboot -f)"
fi