服务器多IP取出IP:

ip_file='/etc/ssh/ip.pid'

function Get_rip(){

if [[ -f $ip_file ]] && [[ `cat $ip_file |wc -l` -eq 1 ]];then
        RIP=`awk -F \= '{print $2}' $ip_file`
else

HOSTIPS=(`/sbin/ip addr |egrep -o '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'|egrep -v '255|127\.0\.0\.1'`)


# 取默认网关IP的前三位 以和 IP 做比对
DEGAWAY1=`route -nee |grep 'UG' |awk '{print $2}'|awk -F \. '{print $1"."$2"."$3}'`
DEGAWAY2=`netstat -r | grep 'default' |awk '{print $2}'|awk -F \. '{print $1"."$2"."$3}'`
if [[ "${DEGAWAY1}" == "${DEGAWAY2}" ]];then
        DEGAWAY=${DEGAWAY2}
else
        DEGAWAY=${DEGAWAY1}
fi
echo ${DEGAWAY}


# 取能连接外网的IP
for ip in ${HOSTIPS};
do
        ip3=`echo ${ip} |awk -F \. '{print $1"."$2"."$3}'`
        if [[ "${ip3}" == "${DEGAWAY}" ]];then
                if [[ $(ping -c 2 223.5.5.5 &>/dev/null ; echo $?) -eq 0 ]];then
                        RIP=${ip}
                else
                        echo "IP ERROR"
                        exit 1
                fi
        fi
done
echo "RIP=${RIP}" > $ip_file
fi
}

Get_rip

Centos版本

VERSION1=`uname -r|awk -F \. '{print $1}'`
VERSION2=`uname -r|awk -F \. '{print $2}'`
VERSION3=`uname -r|awk -F \. '{print $3}'|awk -F \- '{print $1}'`
if [[ ${VERSION1} -eq 2 ]] && [[ ${VERSION2} -le 6 ]] && [[ ${VERSION3} -lt 30 ]];then
        REPO="http://repo.zabbix.com/zabbix/3.0/rhel/5/x86_64/zabbix-release-3.0-1.el5.noarch.rpm"
        SYS=5
elif [[ ${VERSION1} -eq 2 ]] && [[ ${VERSION2} -ge 6 ]] && [[ ${VERSION3} -ge 30 ]];then
        REPO="http://repo.zabbix.com/zabbix/3.0/rhel/6/x86_64/zabbix-release-3.0-1.el6.noarch.rpm"
        SYS=6
elif [[ ${VERSION1} -eq 3 ]] ;then
        REPO="http://repo.zabbix.com/zabbix/3.0/rhel/7/x86_64/zabbix-release-3.0-1.el7.noarch.rpm"
        SYS=7
else
        echo "CHECK VERSION ERROR "
        exit 2
fi
echo ${REPO}
echo ${SYS}