1 #!/usr/bin/expect

2

3 spawn su user_name        //其中,user_name为用户名,需要进行替换;

4 expect "Input Password:"  //其中,"Input Password:"为linux terminal上执行su操作而打印的信息,根据实际情况进行替换操作;

5 send "user_password\r"    //其中,user_password为用户密码,需要进行替换;

6 interact

1 #!/usr/bin/expect

2

3 set timeout 60

4 spawn ssh 远程服务器信息   //远程服务器信息需要进行替换;

5 expect "password:"          //password需要用ssh远程服务器时屏幕所打印的实际信息进行替换;

6 send  "user_password\r"   //user_password需要用用户密码进行替换：

7 interact

#! /usr/bin/expect

set ip [lindex $argv 0];

set username [lindex $argv 1];

set password [lindex $argv 2];

set key_init "*yes/no*"

set key_password "[Pp]assword:"

set timeout 30

set prompt "(#|%|\\$) $"

spawn ssh ${username}@${ip}

expect {

    "$key_init" {

        send "yes\r"

        expect "$key_password" {

            send "${password}\r"

        }

    }

    "$key_password" { send "${password}\r" }

    timeout { puts "Timed out during login"; exit 1 }

}

expect -re "$prompt"

send "exit\r"

expect eof { send_user "eof\r" }

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原文链接：https://blog.csdn.net/three_man/article/details/45153441