Python script for SSH through PuTTY

问题

I am able to give the following command in the command-line

C:\>cd "C:\Program Files\ExtraPuTTY\Bin"

C:\Program Files\ExtraPuTTY\Bin>putty.exe -ssh root@172.20.0.102 22

This helps me open the SSH session through PuTTY.

Whereas I am not able to reproduce them in the Python script.

cwd="C://Program Files//ExtraPuTTY//Bin"
COMMAND="ls"
ssh = Popen(['putty.exe -ssh','%s'%HOST, COMMAND,cwd],shell=True,stdout=f,stderr=f)

The error that I see is

"putty.exe -ssh"' is not recognized as an internal or external command,operable program or batch file

回答1:

In the putty download page, download and install plink, and make sure its in the windows path ($PATH variable)

Then, this python snippet should work:

import subprocess
cmd='plink -ssh {}@{} -pw {}'.format(user,server,password)
sp = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE,stderr=subprocess.PIPE, shell=True)
sp.stdin.write(stdin)
sp.stdin.close()
stdout= sp.stdout.read()
stderr=sp.stderr.read()
sp.wait()

stdin is the commands typed by the user in the terminal, stdout and stderr are the server output.

Fill in your credentials in the user="root", server="172.20.0.102 22" and maybe password for the ssh connection

回答2:

You have to pass the cwd as the cwd parameter of the Popen:

Popen(['putty.exe -ssh'...], shell=True, stdout=f, stderr=f, cwd=cwd)

And you should use Plink, not PuTTY, for automating the remote command execution. The Plink accepts the command on its command-line (PuTTY does not):

Popen(['plink.exe -ssh root@172.20.0.102 ls'], shell=True, stdout=f, stderr=f, cwd=cwd)

来源：https://stackoverflow.com/questions/32598361/python-script-for-ssh-through-putty