来一发Shell剧本之主动修正IP - 仓酷云

#!/bin/sh#autoChangeipnetmaskgatewayscripts#wugk2012-12-17cat<<EOF++++++++主动修正ip和主机名等相干信息+++++++++ETHCONF=/etc/sysconfig/network-scripts/ifcfg-eth0HOSTS=/etc/hostsNETWORK=/etc/sysconfig/networkDIR=/data/backup/`date+%Y%m%d`NETMASK=255.255.255.0+++++++++-------------------------+++++++++++EOF#DefinePath界说变量，能够依据实践情形修正ETHCONF=/etc/sysconfig/network-scripts/ifcfg-eth0HOSTS=/etc/hostsNETWORK=/etc/sysconfig/networkDIR=/data/backup/`date+%Y%m%d`NETMASK=255.255.255.0echo"================================================"echo#界说change_ip函数functionChange_ip(){#判别备份目次是不是存在，中括号前后都有空格，！叹号在shell暗示相反的意义#if[!-d$DIR];thenmkdir-p$DIRfiecho"NowChangeipaddress,DoingBackupInte***ceeth0"cp$ETHCONF$DIRgrep"dhcp"$ETHCONF#以下$?用来判别上一次操纵的形态，为0，暗示上一次操纵形态准确大概乐成#if[$?-eq0];then#read-p交互输出变量IPADDR，注冒号后有空格，sed-i修正设置文件#read-p"PleaseinsertipAddress:"IPADDRsed-is/dhcp/static/g$ETHCONF#awk-F.意义是以.号为分开域，打印前三列#echo-e"IPADDR=$IPADDR
NETMASK=$NETMASK
GATEWAY=`echo$IPADDR|awk-F.{print$1"."$2"."$3}`.254">>$ETHCONFecho"ThisIPaddressChangesuccess!"elseecho-n"This$ETHCONFisstaticexist,pleaseensureChangeYesorNO":readifiif["$i"=="y"-o"$i"=="yes"];thenread-p"PleaseinsertipAddress:"IPADDRcount=(`echo$IPADDR|awk-F.{print$1,$2,$3,$4}`)#界说数组，${#count[@]}代表猎取变量值总个数#A=${#count[@]}#while前提语句判别，个数是不是准确，不准确轮回提醒输出，也能够用[0-9]来判别ip#while["$A"-ne"4"]doread-p"PleasereInsteripAddress,example192.168.0.11ip":IPADDRcount=(`echo$IPADDR|awk-F.{print$1,$2,$3,$4}`)A=${#count[@]}done#sed-e能够一连修正多个参数#sed-i-es/^IPADDR/#IPADDR/g-es/^NETMASK/#NETMASK/g-es/^GATEWAY/#GATEWAY/g$ETHCONF#echo-e
为一连追加内容，并主动换行#echo-e"IPADDR=$IPADDR
NETMASK=$NETMASK
GATEWAY=`echo$IPADDR|awk-F.{print$1"."$2"."$3}`.254">>$ETHCONFecho"ThisIPaddressChangesuccess!"elseecho"This$ETHCONFstaticexist,pleaseexit"exit$?fi}#界说hosts函数############functionhosts##############functionChange_hosts(){if[!-d$DIR];thenmkdir-p$DIRficp$HOSTS$DIRread-p"Pleaseinsertipaddress":IPADDRhost=`echo$IPADDR|seds/./-/g`cat$HOSTS|grep127.0.0.1|grep"$host"if[$?-ne0];thensed-i"s/127.0.0.1/127.0.0.1$host/g"$HOSTSecho"Thishostschangesuccess"elseecho"This$hostISExist.........."fi}###########fuctionnetwork################界说network函数functionChange_network(){if[!-d$DIR];thenmkdir-p$DIRficp$NETWORK$DIRread-p"Pleaseinsertipaddress":IPADDRhost=`echo$IPADDR|seds/./-/g`grep"$host"$NETWORKif[$?-ne0];thensed-i"s/^HOSTNAME/#HOSTNAME/g"$NETWORKecho"NETWORK=$host">>$NETWORKelseecho"This$hostISExist.........."fi}#PS3通常是菜单提醒信息#PS3="PleaseSelectiporhostsMenu":#select为菜单选择下令，格局为select$varin..command..do....doneselectiin"Change_ip""Change_hosts""Change_network"do#case体例，一样平常用于多种前提下的判别case$iinChange_ip)Change_ip;;Change_hosts)Change_hosts;;Change_network)Change_network;;*)echoecho"PleaseInsert$0:Change_ip(1)|Change_hosts(2)|Change_network(3)"echo;;esacdone

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