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python paramiko invoke_shell_在Python Paramiko中的SSH伺服器上的輔助Shell /指令中執行(子)指令...

python paramiko invoke_shell_在Python Paramiko中的SSH伺服器上的輔助Shell /指令中執行(子)指令...

I'm having a problem with a ShoreTel voice switch, and I'm trying to use Paramiko to jump into it and run a couple commands. What I believe the problem might be, is that the ShoreTel CLI gives different prompts than the standard Linux $. It would look like this:

server1$:stcli

Mitel>gotoshell

CLI> (This is where I need to enter 'hapi_debug=1')

Is Python still expecting that $, or am I missing something else?

I thought it might be a time thing, so I put those time.sleep(1) between commands. Still doesn't seem to be taking.

import paramiko

import time

keyfile = "****"

User = "***"

ip = "****"

command1 = "stcli"

command2 = "gotoshell"

command4 = "hapi_debug=1"

ssh = paramiko.SSHClient()

print('paramikoing...')

ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

ssh.connect(hostname = ip, username = User, key_filename = keyfile)

print('giving er a go...')

ssh.invoke_shell()

stdin, stdout, stderr = ssh.exec_command(command1)

time.sleep(1)

stdin, stdout, stderr = ssh.exec_command(command2)

time.sleep(1)

stdin, stdout, stderr = ssh.exec_command(command4)

time.sleep(1)

print(stdout.read())

ssh.close()

print("complete")

What I would expect from the successful execution of this code, would be for the hapi_debug level to be 1. Which means that when I SSH into the thing, I would see those HAPI debugs populating. When I do, I do not see those debugs.

解決方案

I assume that the gotoshell and hapi_debug=1 are not top-level commands, but subcommands of the stcli. In other words, the stcli is kind of a shell.

In that case, you need to write the commands that you want to execute in the subshell to its stdin:

stdin, stdout, stderr = ssh.exec_command('stcli')

stdin.write('gotoshell\n')

stdin.write('hapi_debug=1\n')

stdin.flush()

If you call stdout.read afterwards, it will wait until the command stcli finishes. What it never does. If you wanted to keep reading the output, you need to send a command that terminates the subshell (typically exit\n).

stdin.write('exit\n')

stdin.flush()

print(stdout.read())