利用expect实现linux第一次互信

免密之后第一次相互通信

#!/bin/bash

#set -x
passwd=password
# create ip konwn_hosts
user_ips=$(cat /etc/hosts|sed \1\,\2\d )
#user_ips=$(cat /ddhome/usr/tools/hosts|sed \1\,\2\d )
for user_ip in ${user_ips[@]}
do
        expect -c " set timeout 2;
                spawn ssh root@${user_ip}
                expect {
                        \"(yes/no)\" { send \"yes\r\";exp_continue }
                
                }
                expect  \"]#\"
                send \"exit\n\"
                expect eof
        ";
done

复制公钥

#!/bin/bash
#create copy 
host="ip."
for((i=2;i<22;i++))
do
        echo ${host}${i}
        scp /root/.ssh/authorized_keys root@${host}${i}:/root/.ssh/
        scp  /etc/hosts root@${host}${i}:/etc
        scp  /root/.ssh/known_hosts root@${host}${i}:/root/.ssh/
done