shell ssh key distribution script

#!/bin/bash
#author: quanheng
#desc : 自动化创建密钥与分发密钥 

# 1. 变量

ips='10.0.0.1 10.0.0.2 10.0.0.3'
#2. 创建密钥对(未来可以加入判断)

echo "#1. 创建密钥对"

if [ ! -f "/root/.ssh/id_rsa" ];then
echo '文件不存在 正在创建文件'
ssh-keygen -f  ~/.ssh/id_rsa   -P ''
else
echo '文件存在'
fi
#2. 分发公钥(检查sshpass软件是否存在)
if !(rpm -qa | grep sshpass)
then 
echo 'sshpass 不存在'
 yum install -y sshpass
fi

echo "#2. 分发公钥"
for ip in $ips
do
    sshpass -p密码 ssh-copy-id -i ~/.ssh/id_rsa.pub -oStrictHostKeyChecking=no  $ip
done

#3. 检查 
echo "#3. 检查密钥认证"
for ip in $ips
do 
     ssh $ip hostname -I
done