shell 脚本批量创建免密登录

#!/bin/bash
ipadd="192.168.212"
read -p "请输入密码" passwd
ssh_copy(){
for i in 141 142 143
do

        echo "正在连接$ipadd.$i"
        sshpass -p "$passwd" ssh-copy-id  $ipadd.$i -o StrictHostKeyChecking=no
done
}
if [ -f /usr/bin/sshpass ];then
ssh_copy
else
yum -y install sshpass
ssh_copy
fi