title: Paramiko capturing command output
body: <p>I have an issue that has been giving me a headache for a few days. I am using the Paramiko module with Python 2.7.10 and I'd like to issue multiple commands to a Brocade router, but only return output from one of the given commands like so:</p>
  
  <pre><code>#!/usr/bin/env python
  import paramiko, time
  
  router = 'r1.test.example.com'
  password = 'password'
  username = 'testuser'
  
  ssh = paramiko.SSHClient()
  ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
  ssh.connect(router, username=username, password=password)
  print('Successfully connected to %s' % router)
  
  remote_conn = ssh.invoke_shell()
  output = remote_conn.recv(1000)
  
  # Disable paging on Brocade.
  remote_conn.send('terminal length 0\n')
  # Check interface status.
  remote_conn.send('show interfaces ethernet 0/1\n') # I only want output from this command.
  time.sleep(2)
  output = remote_conn.recv(5000)
  print(output)
  </code></pre>
  
  <p>If I were to print the full output it would contain everything issued to the router, but I only want to see output from the show <code>interfaces ethernet 0/1\n</code> command.</p>
  
  <p>Can anyone help with this issue?</p>
  
  <p>One final thing I would like to ask. I want to filter through the <code>output</code> variable and check for occurrences of strings like "up" or "down", but I can't seem to get it to work because everything in the output appears to be on new lines?</p>
  
  <p>For example:</p>
  
  <p>If I iterate over the <code>output</code> variable in a for loop I get all of the characters in the variable like so:</p>
  
  <pre><code>for line in output:
      print(line)
  </code></pre>
  
  <p>I get an output like this:</p>
  
  <p>t</p>
  
  <p>e</p>
  
  <p>r</p>
  
  <p>m</p>
  
  <p>i</p>
  
  <p>n</p>
  
  <p>a</p>
  
  <p>l</p>
  
  <p>l</p>
  
  <p>e</p>
  
  <p>n</p>
  
  <p>g</p>
  
  <p>t</p>
  
  <p>h</p>
  
  <p>0</p>
  
  <p>Any way around this?</p>
  
  <p>Again,</p>
  
  <p>Thanks in advance for any help.</p>
  
  <p>Best regards,</p>
  
  <p>Aaron C.</p>