同网段存活IP公钥分发脚本

#!/bin/bash

function bendiyum(){
umount /dev/sr0 &> /dev/null
[ -e /media/cdrom ] || mkdir -p /media/cdrom
mount /dev/sr0 /media/cdrom &> /dev/null
if [ $? -ne 0 ];then
        echo "请插入光盘"       
        exit
fi
cd /etc/yum.repos.d || mkdir -p /etc/yum.repos.d
mv /etc/yum.repos.d/* /tmp
cat > /etc/yum.repos.d/localyum.repo << FOF
[local]
name=local
baseurl=file:///media/cdrom/
gpgcheck=0
enabled=1
FOF
yum -y clean all &> /dev/null
yum makecache &> /dev/null
[ $? -eq 0 ] && echo "成功搭建yum仓库" || echo "yum仓库搭建失败"
}

function yunyum(){
which wget
if [ $? -ne 0 ];then
        bendiyum
        yum -y install wget &> /dev/null
        if [ $? -ne 0 ];then
                echo "安装wget失败"
                exit
        fi
else
        ping -c 2 www.baidu.com &> /dev/null
        if [ $? -ne 0 ];then
                echo "网络不通"
                exit
        else
                wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo &> /dev/null
                if [ $? -eq 0 ];then
                        yum -y clean all &> /dev/null
                        yum makecache &> /dev/null
                        echo "云yum仓库搭建成功"
                else
                        echo "云yum仓库搭建失败"
                fi
        fi
fi
}

which scp &> /dev/null
if [ $? -ne 0 ];then
        yum -y install openssh-clients &> /dev/null
                if [ $? -ne 0 ];then
                        echo "安装scp失败"
                        exit
                fi
fi
which sshpass &> /dev/null
        yum -y install sshpass &> /dev/null
                if [ $? -ne 0 ];then
                        echo "安装sshpass失败"
                        exit
                fi
fi
[ -e /root/.ssh/id_rsa_pub ]
if [ $? -ne 0 ];then
        mv /root/.ssh/* /tmp &> /dev/null
        ssh-keygen -f/root/.ssh/id_rsa -P "" &> /dev/null
fi
[ -e /root/.ssh/id_rsa ]
if [ $? -ne 0 ];then
        mv /root/.ssh/* /tmp &> /dev/null
        ssh-keygen -f/root/.ssh/id_rsa -P "" &> /dev/null
fi
for i in 192.168.200.{1..254}
do
        ping -c 1 -i 0.1 $i > /dev/null
        if [ $? == 0 ];then
                sshpass -p "jinchuan" ssh-copy-id -i /root/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no $i" &> /dev/null
                if [ $? == 0 ];then
                        echo "$i 公钥分发成功"
                fi
        fi
done