shell脚本自动修改ip地址的实现代码
时间:2014-11-03 23:57 来源:linux.it.net.cn 作者:it
有关shell脚本自动修改ip地址的一段代码，修改ip和主机名等相关信息，可以设置主机名、ip信息、网关等配置。
在linux服务器中ip地址一般采用静态ip或MAC绑定，可以设置主机名、ip信息、网关等配置。
修改成特定的主机名。
分享一例shell脚本，功能：修改ip和主机名等相关信息。
复制代码代码示例:
#!/bin/sh
#auto Change ip netmask gateway scripts
#wugk 2012-12-17
cat << EOF
++++++++自动修改ip和主机名等相关信息+++++++++
ETHCONF=/etc/sysconfig/network-scripts/ifcfg-eth0
HOSTS=/etc/hosts
NETWORK=/etc/sysconfig/network
DIR=/data/backup/`date +%Y%m%d`
NETMASK=255.255.255.0
+++++++++-------------------------+++++++++++
EOF
#Define Path 定义变量，可以根据实际情况修改
ETHCONF=/etc/sysconfig/network-scripts/ifcfg-eth0
HOSTS=/etc/hosts
NETWORK=/etc/sysconfig/network
DIR=/data/backup/`date +%Y%m%d`
NETMASK=255.255.255.0
echo "================================================"
echo
#定义change_ip函数
function Change_ip ()
{
#判断备份目录是否存在，中括号前后都有空格，！叹号在shell表示相反的意思# www.jbxue.com
if
[ ! -d $DIR ];then
mkdir -p $DIR
fi
echo "Now Change ip address ,Doing Backup Interface eth0"
cp $ETHCONF $DIR
grep "dhcp" $ETHCONF
#如下$?用来判断上一次操作的状态，为0，表示上一次操作状态正确或者成功#
if
[ $? -eq 0 ];then
#read -p 交互输入变量IPADDR，注冒号后有空格，sed -i 修改配置文件#
read -p "Please insert ip Address:" IPADDR
sed -i 's/dhcp/static/g' $ETHCONF
#awk -F. 意思是以.号为分隔域，打印前三列#
echo -e "IPADDR=$IPADDR\nNETMASK=$NETMASK\nGATEWAY=`echo $IPADDR|awk -F. '{print $1"."$2"."$3}'`.254" >>$ETHCONF
echo "This IP address Change success !"
else
echo -n "This $ETHCONF is static exist ,please ensure Change Yes or NO":
read i
fi
if
[ "$i" == "y" -o "$i" == "yes" ];then
read -p "Please insert ip Address:" IPADDR
count=(`echo $IPADDR|awk -F. '{print $1,$2,$3,$4}'`)
#定义数组， ${#count[@]}代表获取变量值总个数#
A=${#count[@]}
#while条件语句判断，个数是否正确，不正确循环提示输入，也可以用[0-9]来判断ip#
while
[ "$A" -ne "4" ]
do
read -p "Please re Inster ip Address,example 192.168.0.11 ip": IPADDR
count=(`echo $IPADDR|awk -F. '{print $1,$2,$3,$4}'`)
A=${#count[@]}
done
#sed -e 可以连续修改多个参数#
sed -i -e 's/^IPADDR/#IPADDR/g' -e 's/^NETMASK/#NETMASK/g' -e 's/^GATEWAY/#GATEWAY/g' $ETHCONF
#echo -e \n为连续追加内容，并自动换行#
echo -e "IPADDR=$IPADDR\nNETMASK=$NETMASK\nGATEWAY=`echo $IPADDR|awk -F. '{print $1"."$2"."$3}'`.254" >>$ETHCONF
echo "This IP address Change success !"
else
echo "This $ETHCONF static exist,please exit"
exit $?
fi
}
#定义hosts函数
############function hosts##############
function Change_hosts ()
{
if
[ ! -d $DIR ];then
mkdir -p $DIR
fi
cp $HOSTS $DIR
read -p "Please insert ip address": IPADDR
host=`echo $IPADDR|sed 's/\./-/g'`
cat $HOSTS |grep 127.0.0.1 |grep "$host"
if
[ $? -ne 0 ];then
sed -i "s/127.0.0.1/127.0.0.1 $host/g" $HOSTS
echo "This hosts change success "
else
echo "This $host IS Exist .........."
fi
}
###########fuction network###############
#定义network函数
function Change_network ()
{
if
[ ! -d $DIR ];then
mkdir -p $DIR
fi
cp $NETWORK $DIR
read -p "Please insert ip address": IPADDR
host=`echo $IPADDR|sed 's/\./-/g'`
grep "$host" $NETWORK
if
[ $? -ne 0 ];then
sed -i "s/^HOSTNAME/#HOSTNAME/g" $NETWORK
echo "NETWORK=$host" >>$NETWORK
else
echo "This $host IS Exist .........."
fi
}
#PS3一般为菜单提示信息#
PS3="Please Select ip or hosts Menu":
#select为菜单选择命令，格式为select $var in ..command.. do .... done
select i in "Change_ip" "Change_hosts" "Change_network"
do
#case 方式，一般用于多种条件下的判断
case $i in
Change_ip )
Change_ip
;;
Change_hosts )
Change_hosts
;;
Change_network )
Change_network
;;
*)
echo
echo "Please Insert $0: Change_ip(1)|Change_hosts(2)|Change_network(3)"
echo
;;
esac
done
(责任编辑：IT)
| 有关shell脚本自动修改ip地址的一段代码，修改ip和主机名等相关信息，可以设置主机名、ip信息、网关等配置。
在linux服务器中ip地址一般采用静态ip或MAC绑定，可以设置主机名、ip信息、网关等配置。
分享一例shell脚本，功能：修改ip和主机名等相关信息。
复制代码代码示例:
#!/bin/sh
#auto Change ip netmask gateway scripts #wugk 2012-12-17 cat << EOF ++++++++自动修改ip和主机名等相关信息+++++++++ ETHCONF=/etc/sysconfig/network-scripts/ifcfg-eth0 HOSTS=/etc/hosts NETWORK=/etc/sysconfig/network DIR=/data/backup/`date +%Y%m%d` NETMASK=255.255.255.0 +++++++++-------------------------+++++++++++ EOF #Define Path 定义变量，可以根据实际情况修改 ETHCONF=/etc/sysconfig/network-scripts/ifcfg-eth0 HOSTS=/etc/hosts NETWORK=/etc/sysconfig/network DIR=/data/backup/`date +%Y%m%d` NETMASK=255.255.255.0 echo "================================================" echo #定义change_ip函数 function Change_ip () { #判断备份目录是否存在，中括号前后都有空格，！叹号在shell表示相反的意思# www.jbxue.com if [ ! -d $DIR ];then mkdir -p $DIR fi echo "Now Change ip address ,Doing Backup Interface eth0" cp $ETHCONF $DIR grep "dhcp" $ETHCONF #如下$?用来判断上一次操作的状态，为0，表示上一次操作状态正确或者成功# if [ $? -eq 0 ];then #read -p 交互输入变量IPADDR，注冒号后有空格，sed -i 修改配置文件# read -p "Please insert ip Address:" IPADDR sed -i 's/dhcp/static/g' $ETHCONF #awk -F. 意思是以.号为分隔域，打印前三列# echo -e "IPADDR=$IPADDR\nNETMASK=$NETMASK\nGATEWAY=`echo $IPADDR|awk -F. '{print $1"."$2"."$3}'`.254" >>$ETHCONF echo "This IP address Change success !" else echo -n "This $ETHCONF is static exist ,please ensure Change Yes or NO": read i fi if [ "$i" == "y" -o "$i" == "yes" ];then read -p "Please insert ip Address:" IPADDR count=(`echo $IPADDR|awk -F. '{print $1,$2,$3,$4}'`) #定义数组， ${#count[@]}代表获取变量值总个数# A=${#count[@]} #while条件语句判断，个数是否正确，不正确循环提示输入，也可以用[0-9]来判断ip# while [ "$A" -ne "4" ] do read -p "Please re Inster ip Address,example 192.168.0.11 ip": IPADDR count=(`echo $IPADDR|awk -F. '{print $1,$2,$3,$4}'`) A=${#count[@]} done #sed -e 可以连续修改多个参数# sed -i -e 's/^IPADDR/#IPADDR/g' -e 's/^NETMASK/#NETMASK/g' -e 's/^GATEWAY/#GATEWAY/g' $ETHCONF #echo -e \n为连续追加内容，并自动换行# echo -e "IPADDR=$IPADDR\nNETMASK=$NETMASK\nGATEWAY=`echo $IPADDR|awk -F. '{print $1"."$2"."$3}'`.254" >>$ETHCONF echo "This IP address Change success !" else echo "This $ETHCONF static exist,please exit" exit $? fi } #定义hosts函数 ############function hosts############## function Change_hosts () { if [ ! -d $DIR ];then mkdir -p $DIR fi cp $HOSTS $DIR read -p "Please insert ip address": IPADDR host=`echo $IPADDR|sed 's/\./-/g'` cat $HOSTS |grep 127.0.0.1 |grep "$host" if [ $? -ne 0 ];then sed -i "s/127.0.0.1/127.0.0.1 $host/g" $HOSTS echo "This hosts change success " else echo "This $host IS Exist .........." fi } ###########fuction network############### #定义network函数 function Change_network () { if [ ! -d $DIR ];then mkdir -p $DIR fi cp $NETWORK $DIR read -p "Please insert ip address": IPADDR host=`echo $IPADDR|sed 's/\./-/g'` grep "$host" $NETWORK if [ $? -ne 0 ];then sed -i "s/^HOSTNAME/#HOSTNAME/g" $NETWORK echo "NETWORK=$host" >>$NETWORK else echo "This $host IS Exist .........." fi } #PS3一般为菜单提示信息# PS3="Please Select ip or hosts Menu": #select为菜单选择命令，格式为select $var in ..command.. do .... done select i in "Change_ip" "Change_hosts" "Change_network" do #case 方式，一般用于多种条件下的判断 case $i in Change_ip ) Change_ip ;; Change_hosts ) Change_hosts ;; Change_network ) Change_network ;; *) echo echo "Please Insert $0: Change_ip(1)|Change_hosts(2)|Change_network(3)" echo ;; esac done |