Simple SSH Client by Paramiko

ssh_client.py

import threading
import subprocess
from paramiko import SSHClient, AutoAddPolicy
from argparse import ArgumentParser, RawDescriptionHelpFormatter

# config the arguments
parser = ArgumentParser(description="SSH Client",
                        formatter_class=RawDescriptionHelpFormatter)

parser.add_argument("--host",
                    help="hostname to connect",
                    required=True,
                    metavar="HOST/IP")
parser.add_argument("--port",
                    help="portname to connect",
                    metavar="NUMBER",
                    required=True,
                    type=int)
parser.add_argument("--user",
                    help="username of ssh server",
                    metavar="USERNAME")
parser.add_argument("--pswd",
                    help="password of ssh server",
                    metavar="PASSWORD")
parser.add_argument("--command",
                    help="command to run",
                    metavar="CMD",
                    required=True)

# parse arguments
args = parser.parse_args()

# create ssh client
ssh = SSHClient()

# setting up the auto add policy
ssh.set_missing_host_key_policy(AutoAddPolicy())
# connecting to the ssh server
ssh.connect(args.host, args.port, args.user, args.pswd)
# getting transport session
ssh_session = ssh.get_transport().open_session()

# checking if session is alive
if ssh_session.active:
    # executing the command
    ssh_session.exec_command(args.command)
    # recieving the output
    print(ssh_session.recv(4096).decode())