期望脚本在服务器上登录并运行本地文件

Question

I'm trying to use Expect to first login to the server then run a local file on the server.

I have an Expect script called sshScript.exp :

#!/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]

and emrScript.sh is located in the same directory as the Expect script:

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

When I call /usr/bin/expect sshScript.exp <username> <password> <host> It will display the prompt Enter your AD Password: then I get the error bash: ./emrScript.sh: No such file or directory because its trying to run the file from the server

But I can run just the command ssh -o StrictHostKeyChecking=no <username>@<host> bash -s < ./emrScript.sh and it'll ask for my password and run the script accordingly from the local location.

What am I doing wrong in the expect script?

Answer 1

spawn ssh $user@$host "bash -s" < "./emrScript.sh" would actually run ssh $user@$host "bash -s" "<" "./emrScript.sh" which is the same as ssh $user@$host "bash -s < ./emrScript.sh" .

You can write like this:

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