python - Execute the system Linux command on remote Linux machine

python - Execute the system Linux command on remote Linux machine

Python Program:

mport pexpect

import getpass

import sys

PASSWORD = "admin123"

def child_kill(child_pro):

    if child_pro.isalive():

        print "Still child is live 1 \n"

        child_pro.close()       # Kill the child, give argument as force=true then also same behaviour

    if child_pro.isalive():

        print "Still child is live 2\n\n"

    else:

        print "Child is dead"

def child_read_command(child_pro, command, expect_str):

    child_pro.sendline (command)

    child_pro.expect (expect_str)

# use list format, string format is not working

    output = []

    done = False

    while True:

        try:

            if not child_pro.isalive():

                line = child_pro.readline()

                done = True

            else:

# Wait on multiple expect eg: i = child.expect(['first', 'second'])

# i retrun 0 for first, and 1 for second

                i = child_pro.expect(['\n', expect_str])

                if i == 0:

                    line = child_pro.before

                    print(line)

                else:

                    line = child_pro.before

                    print(line)

                    break

            output.append(line)

            if done:

                raise pexpect.EOF(0)

                print "Rasie the pexect EOF"

        except pexpect.EOF:

            print "Break of EOF"

            break

    print "\n\nOutput value = ", output

    child_kill(child_pro)

def ssh_login(host_address):

    child = pexpect.spawn ('ssh '+host_address)

    child.logfile = open("/home/labuser/mylog", "w")   # This will store the output logs into the file

#    child.logfile = sys.stdout

    child.expect ('password: ')

    child.sendline (PASSWORD)

    child.expect ('machine:')

    return child

def main():

    child = ssh_login("192.168.1.50")

    child_read_command(child,'ls','machine:')

main()