黑猴子的家：auto_ssh_two_expect.sh

1、提前安装依赖

[alex@hadoop102 ~]$ sudo yum install -y sshpass expect -y

2、编辑脚本

[alex@hadoop102 ~]$ touch ~/bin/auto_ssh_two_expect.sh
[alex@hadoop102 ~]$ chmod 755 ~/bin/auto_ssh_two_expect.sh
[alex@hadoop102 ~]$ vim ~/bin/auto_ssh_two_expect.sh
#!/bin/bash

user=`whoami`
passwd=000000

for((host=102; host<=104; host++));do
    sshpass -p $passwd ssh -q -o StrictHostKeyChecking=no ${user}@hadoop${host} "rm -rf ~/.ssh/*"
done

for((host=102; host<=104; host++));do
    sshpass -p $passwd ssh -q -o StrictHostKeyChecking=no ${user}@hadoop${host} "sudo yum install -y sshpass expect -y"
done

# sudo yum install -y sshpass expect -y
for((host=102; host<=104; host++));do
    sshpass -p $passwd ssh -q -o StrictHostKeyChecking=no ${user}@hadoop${host} expect << EOF
    spawn ssh-keygen -t rsa
    expect {
        "Enter file in which to save the key (/home/${user}/.ssh/id_rsa):" { send "\r"; exp_continue}
        "Overwrite (y/n)?" { send "y\r"; exp_continue }
        "Enter passphrase (empty for no passphrase):" { send "\r"; exp_continue}
        "Enter same passphrase again:" { send "\r"}
    }
    expect eof
EOF
done

for((current=102; current<=104; current++));do
    for((host=102; host<=104; host++));do
        sshpass -p $passwd ssh -q -o StrictHostKeyChecking=no ${user}@hadoop${current} "sshpass -p $passwd ssh-copy-id -o StrictHostKeyChecking=no ${user}@hadoop${host}"
    done
done

3、执行脚本

[alex@hadoop102 ~]$ auto_ssh_two_expect.sh