help needed in ssh using python script

[prashanth s j]

Hi all,

the following is the result of executing a command on cli of a machine 192.148.2.10:

PGK:1200>> show employee record
show employee record
EmIL   Desig     Street               Street2         Occupation     Avialability    
------  -----    -------------  -------------         ----------  ------------- -----------
   3222 HOD      MorganLayout          HB colony       Engineer       Yes   
   3321 Read    Banker's colony       James Yard       Engineer       Yes   
   3432 Lect   Michigen Compound      Morice Villa     BioTech        Yes

If I run a script that executes the command by doing remote ssh to this machine this is what happens:
First i do ssh and get the ssh handler : this handler is "child"
Then I send the command using the child as follows:

child.sendline("show employee record)

and I return:

return child.before

My problem is I am not getting the full out put.
I am getting only

show employee record
show employee record

as the out put.
What should be done to get the full out put, ie including all the records/
Any help would be valuable for me.

Regards,
prashanth

[wolfeater017]

this is a little complicated but I think the first thing you need to do is give whatever you what to have printed out a variable like z. Then your code should be something like this you may have to play with it a little depending on what verision of python you are using.[
x = input
if x = 'return child.before':
print(z)]

if you play with that for a little bit you should get what you want
good luck

[TrustyTony]

You could check up this code if it gives you any inspiration how to do ssh in Python. It is from old thread: Connecting to a Linux Machine via SSH but has no code tags so here it is with those:

# Login to ABC Machine via SSH
    child = pexpect.spawn('ssh -l %s %s'%(ABCusername, ABChostname))
    i = child.expect([pexpect.TIMEOUT, SSH_NEWKEY, COMMAND_PROMPT, '(?i)password'])
    if i == 0: # Timeout
        print 'ERROR! could not login with SSH. Here is what SSH said:'
        print child.before, child.after
        print str(child)
        sys.exit (1)
    if i == 1: # In this case SSH does not have the public key cached.
        child.sendline ('yes')
        child.expect ('(?i)password')
    if i == 2:
        # This may happen if a public key was setup to automatically login.
        pass
    if i == 3:
        child.sendline(ABCpassword)
        # Now we are either at the command prompt or
        # the login process is asking for our terminal type.
        i = child.expect ([COMMAND_PROMPT, TERMINAL_PROMPT])
        if i == 1:
            child.sendline (TERMINAL_TYPE)
            child.expect (COMMAND_PROMPT)

    # Set command prompt to something more unique.

    COMMAND_PROMPT = "\[PEXPECT\]\$ "
    child.sendline ("PS1='[PEXPECT]\$ '") # In case of sh-style
    i = child.expect ([pexpect.TIMEOUT, COMMAND_PROMPT], timeout=10)
    if i == 0:
        print "# Couldn't set sh-style prompt -- trying csh-style."
        child.sendline ("set prompt='[PEXPECT]\$ '")
        i = child.expect ([pexpect.TIMEOUT, COMMAND_PROMPT], timeout=10)
        if i == 0:
            print "Failed to set command prompt using sh or csh style."
            print "Response was:"
            print child.before
            sys.exit (1)

  # Now you can do scp as follows:

  child.sendline('scp ~/sample.txt %s@%s:/sample.txt'%(XYZusername, XYZhostname))
    i = child.expect([pexpect.TIMEOUT, SSH_NEWKEY, COMMAND_PROMPT, '(?i)password'])
    if i == 0: # Timeout
        print 'ERROR! could not copy with SCP. Here is what SCP said:'
        print child.before, child.after
        print str(child)
        sys.exit (1)
    if i == 1: # In this case SSH does not have the public key cached.
        child.sendline ('yes')
        child.expect ('(?i)password')
    if i == 2:
        # This may happen if a public key was setup to automatically login.
        pass
    if i == 3:
        child.sendline(XYZpassword)
        child.expect(COMMAND_PROMPT)
        print child.before

### All u r doing is; connecting to a machine called ABC and from there, u r doing scp to any required machine XYZ.

### I hope it helps u.