yum install -y expect
ssh-keygen -t rsa -P "" -f /root/.ssh/id_rsa
export mypass=123456
 name=(node1 node2 node3 node4)
for i in ${name[@]};do
expect -c "
spawn ssh-copy-id -i /root/.ssh/id_rsa.pub root@$i
  expect {
    \"*yes/no*\" {send \"yes\r\"; exp_continue}
    \"*password*\" {send \"$mypass\r\"; exp_continue}
    \"*Password*\" {send \"$mypass\r\";}
  }"
done