期望脚本在服务器上登录并运行本地文件

Question

我正在尝试使用Expect首先登录到服务器，然后在服务器上运行本地文件。

我有一个称为sshScript.exp的Expect脚本：

#!/usr/bin/expect
set username [lindex $argv 0]
set password [lindex $argv 1]
set sshHost [lindex $argv 2]

# ssh and run script in emr
spawn ssh -o StrictHostKeyChecking=no $username@$sshHost "bash -s" < "./emrScript.sh"
expect "Enter your AD Password:" {
    send "$password\r"
    expect eof
}

# wait for exit code and return it
catch wait result
exit [lindex $result 3]

和emrScript.sh与Expect脚本位于同一目录中：

#!/bin/bash
echo "Hello EMR - this script is local"
echo "this script will pass"
exit 0

当我调用/usr/bin/expect sshScript.exp <username> <password> <host> ，将显示提示Enter your AD Password:然后我收到错误提示bash: ./emrScript.sh: No such file or directory因为它试图从服务器运行文件

但是我只能运行命令ssh -o StrictHostKeyChecking=no <username>@<host> bash -s < ./emrScript.sh ，它将询问我的密码并从本地位置相应地运行脚本。

我在期望脚本中做错了什么？

Answer 1

spawn ssh $user@$host "bash -s" < "./emrScript.sh"实际上会运行ssh $user@$host "bash -s" "<" "./emrScript.sh"与ssh $user@$host "bash -s < ./emrScript.sh"相同ssh $user@$host "bash -s < ./emrScript.sh" 。

您可以这样写：

spawn bash -c "ssh $user@$host bash -s < ./emrScript.sh"