Paramiko SSH output not capturing command output

Question

I have a small script to execute a command in a device. Instead of getting the output of the command in stdout, I am getting all those printed before the command prompt after loggin into the device.

import paramiko, 
client = paramiko.SSHClient()
client.load_system_host_keys()
client.connect('10.88.124.88', username='admin',password='testing',timeout=15.0)
print "Connected...\n"
print "Executing show version...\n"
stdin, stdout, stderr = client.exec_command("show version")
print "AFTER Executing show version...\n"
stdin.channel.shutdown_write()
print "BEFORE Reading output...\n"
output = stdout.read()
print "AFTER Reading output...\n"
print "OUTPUT:: '", output, "'"
print "Execting quit...\n"
stdin, stdout, stderr = client.exec_command("quit\n")

The output I am getting from the script is as shown below. I am expecting output of "show version" in the output. Not sure where I am missing. The response from the device is a bit slow.

[root@dev-s2-3m7-aio-139-44 ~]# ./ssh-bana.py
Connected...
...
OUTPUT:: ' Command Line Interface is starting up, please wait ...
verifying connection to main ([email protected])... success
verifying connection to secondary ([email protected])... success

   Welcome to the TelePresence Command Line Interface (version 1.1)

Last login: Wed Jun 27 14:45:21 CDT 2012 from 10.88.139.44

admin: '
Execting quit...

iRockz · Accepted Answer · 2013-06-02 10:27:36Z

1

add right after you execute show version command:

    print "".join(stdout.readlines())

answered Jun 2, 2013 at 10:27

iRockz

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