SCP a tar file using pexpect

Is there a reason your using pexpect or even paramiko?

if you setup a public/private key then you can just use as a single example:

command = "scp [email protected]:/home/user/tarfile.tar.gz" split_command = shlex.split(command) subprocess.call(split_command) 

Then as per the suggestion above use paramiko to send commands.

you can use the keyfile for that as well:

The following class method will give you a persistent session (although it is untested):

#!/usr/bin/python # -*- coding: utf-8 -*- from __future__ import print_function import os from paramiko import SSHClient, AutoAddPolicy, AuthenticationException, RSAKey from subprocess import call class CommsSuite(object): def __init__(self): self.ssh_client = SSHClient() #-------------------------------------- def _session_send(command): """ Use to send commands over ssh in a 'interactive_session' Verifies session is present If the interactive_session is not present then print the failed command. This may be updated to raise an error, which would probably make more sense. @param command: the command to send across as a string ::TODO:: consider raise exception here as failed session will most likely be fatal. """ if self.session.send_ready(): self.session.send("%s\n" % command) else: print("Session cannot send %s" % command) #-------------------------------------- def _get_persistent_session(_timeout = 5): """ connect to the host and establish an interactive session. @param _timeout: sets the timout to prevent blocking. """ privatekeyfile = os.path.expanduser('~/.ssh/id_rsa')#this must point to your keyfile private_key = RSAKey.from_private_key_file(privatekeyfile) self.ssh_client.set_missing_host_key_policy(AutoAddPolicy()) self.ssh_client.connect(hostname, username = <username>, pkey = private_key, timeout = _timeout) self.transport = self.ssh_client.get_transport() self.session = self.transport.open_session() self.session.exec_command("bash -s") _get_persistent_session() # build a comma seperated list of commands here as a string "[a,b,c]" commands = ["tar -zxvf tarfile.tar.gz bin/installer.sh", "setsid /tmp/bin/installer.sh /tmp/tarfile.tar.gz > /dev/null 2>&1"] # then run the list of commands if len(commands) > 0: for command in commands: _session_send(command) self.session.close()#close the session when done CommsSuite()