how to excute powershell script on remote machine using ssh in python

Question

When I ssh to the windows machine it will not be in powershell prompt and I don't know how I'm going to execute the powershell script I have.

I tried the following code without success.

ssh_connect(ip1, " powershell.exe <mtu-read.ps1")

def ssh_connect(address, script):

    #key_filename1 = 'id_rsa' #no authentication for now testing
    host_user = "Administrator"
    try:
        process1 = subprocess.Popen("ssh -oStrictHostKeyChecking=no " + host_user + "@" + address + script, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        output1 = process1.stdout.readlines()
        print(output1)
        return output1

    except Exception as er2:
        print(str(er2) + ' connection issue ')
        return "0"

The result I get is that it does not recognize the command in the powershell.

Honestly, the best way to do this is to have the python script download powershell as a string and execute it using IEX. You can host your powershell script on a webserver and serve it like that. — Alexander Sinno
– Alexander Sinno, Commented Jul 31, 2019 at 9:00
@AlexanderSinno It really isn't. Using Invoke-Expression should be for very select use-cases. The issue is OP's use of < — Maximilian Burszley
– Maximilian Burszley, Commented Jul 31, 2019 at 12:56

Maximilian Burszley · Accepted Answer · 2019-07-31 12:57:36Z

0

Your syntax is invalid in the powershell call:

powershell.exe -File mtu-read.ps1

Note your working directory or the script file won't be found. I suggest fully-qualifying your script path as a best-practice.

As an aside, I question why you're using python to execute powershell instead of just writing a powershell script and utilizing winrm (native to Windows) instead of ssh.

answered Jul 31, 2019 at 12:57

Maximilian Burszley

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3 Comments

nadeem Over a year ago

the files are not in the server i should point out that i wanted to feed them to the ssh connection using <

Maximilian Burszley Over a year ago

@nadeem You can't. You'd need to read the file content and use the -Command argument in that scenario while also dealing with all the cmd escaping rules. Alternatively, use base64 and -EncodedCommand

naugler Over a year ago

"OpenSSH has been added to Windows as of autumn 2018, and is included in Windows 10 and Windows Server 2019." link

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