期望脚本 - 输入密码然后运行 ​​bash 脚本

Question

我有一个 bash 脚本，它使用启动 ssh 进程的密码调用期望脚本：

#!/usr/bin/bash
/usr/bin/expect $PWD/sshScript.exp $SSHPASSWORD

expect 脚本调用 ssh 命令，等待提示输入密码并发送密码。

#!/usr/bin/expect
set password [lindex $argv 0];
spawn ssh -o "StrictHostKeyChecking no" username@host
expect "Enter your AD Password:" {
    send "$password\r"
}

我可以让远程服务器正确地 ssh 并显示[user@host ~]$，但我想在期望脚本中添加一种自动运行 bash 脚本的方法，该脚本存储在与其他两个脚本相同的位置。

我试过了

a) 将文件 scp 到远程并在服务器中调用它，但我似乎无法期望发送任何文本传递密码

b) 执行spawn ssh -o "StrictHostKeyChecking no" username@host < secondscript.sh发送脚本以运行，但在尝试运行脚本之前不会等待输入密码。

Answer 1

您可以将 bash 和 expect 脚本组合在一起，并使用它将第 3 个 bash 脚本复制到远程服务器，执行它并返回输出。 这是一个简单的未测试示例：

#!/bin/bash

[... other bash code here ...]

SCRIPT='/path/to/script/to/run/remotely.sh'
LOGIN='test'
IP='your ip or hostname'
LOCATION='/destination/path/to/script/to/run/remotely.sh'

### start expect part here, you may add '-d' after 'expect' for debug

/usr/bin/expect << EOD
### set a 3 minute timeout
set timeout 180
### copy the script you wish to run on the remote machine
spawn scp -o StrictHostKeyChecking=no -p $SCRIPT $LOGIN@$IP:$LOCATION
expect {
  timeout            { send_user "\n# TIMED OUT. HOST NOT REACHABLE #\n"; exit 3 }
  "*assword: "
}
send "your_password\r"
expect {
  "*assword: " { send_user "\n# Incorrect Password. Login Failed. #\n"; exit 4 }
  "100%" { send_user "\nFile copied\n" }
}

### ssh to remote server to run script
spawn ssh $LOGIN@$IP
expect {
  timeout        { send_user "\n# TIMED OUT. SSH DAEMON or PORT 22 CLOSED #\n"; exit 6 }
  "*assword: "
}
send "your_password\r"
expect {
  timeout        { send_user "\n# TIMED OUT. PROMPT NOT RECOGNISED! #\n"; exit 7 }
### expect the prompt symbol
  -re {[#>$] }
## execute your script on the remote machine
send "$LOCATION\r"
expect {
  "enter what you expect here" { send_user "\nRESULT: Message based on what you set the expect to read $IP\n" }
  -re {[#>$] }
}

[... other expect code here ... ]

### exit remote ssh session
send "exit\r"
### end of expect part of script 
EOD
### continue bash script here

[... other bash code here ...]