我可以通过 Python 脚本控制 PSFTP 吗？

发布于 2024-09-17 20:53:33 字数 381 浏览 8 评论 0原文

我想从 Python 脚本运行和控制 PSFTP，以便将日志文件从 UNIX 机器获取到我的 Windows 机器上。

我可以启动 PSFTP 并登录，但是当我尝试远程运行命令（例如“cd”）时，PSFTP 无法识别它，并且当我关闭 PSFTP 时它只是在终端中运行。

我试图运行的代码如下：

import os

os.system("<directory> -l <username> -pw <password>" )
os.system("cd <anotherDirectory>")

我只是想知道这是否真的可能。或者是否有更好的方法在 Python 中执行此操作。

谢谢。

原文

i want to run and control PSFTP from a Python script in order to get log files from a UNIX box onto my Windows machine.

I can start up PSFTP and log in but when i try to run a command remotely such as 'cd' it isn't recognised by PSFTP and is just run in the terminal when i close PSFTP.

The code which i am trying to run is as follows:

import os

os.system("<directory> -l <username> -pw <password>" )
os.system("cd <anotherDirectory>")

i was just wondering if this is actually possible. Or if there is a better way to do this in Python.

Thanks.

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林空鹿饮溪 2024-09-24 20:53:33

您需要将 PSFTP 作为子进程运行并直接与该进程对话。 os.system 每次调用时都会生成一个单独的子 shell，因此它不像在命令提示符窗口中按顺序键入命令那样工作。查看标准 Python subprocess 模块的文档。从那里你应该能够实现你的目标。另外，还有一些可用的 Python SSH 软件包，例如 paramiko 和扭曲。如果您已经对 PSFTP 感到满意，我肯定会坚持首先尝试让它工作。

子流程模块提示：

# The following line spawns the psftp process and binds its standard input
# to p.stdin and its standard output to p.stdout
p = subprocess.Popen('psftp -l testuser -pw testpass'.split(), 
                     stdin=subprocess.PIPE, stdout=subprocess.PIPE)
# Send the 'cd some_directory' command to the process as if a user were 
# typing it at the command line
p.stdin.write('cd some_directory\n')

You'll need to run PSFTP as a subprocess and speak directly with the process. os.system spawns a separate subshell each time it's invoked so it doesn't work like typing commands sequentially into a command prompt window. Take a look at the documentation for the standard Python subprocess module. You should be able to accomplish your goal from there. Alternatively, there are a few Python SSH packages available such as paramiko and Twisted. If you're already happy with PSFTP, I'd definitely stick with trying to make it work first though.

Subprocess module hint:

# The following line spawns the psftp process and binds its standard input
# to p.stdin and its standard output to p.stdout
p = subprocess.Popen('psftp -l testuser -pw testpass'.split(), 
                     stdin=subprocess.PIPE, stdout=subprocess.PIPE)
# Send the 'cd some_directory' command to the process as if a user were 
# typing it at the command line
p.stdin.write('cd some_directory\n')

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