try:
    username = 'username'
    password = 'password'
    ip = 'xx.xx.xx.xx'
    port = XXXX

    reading_timeout = 5

    connection = telnetlib.Telnet (ip)

    console_output = connection.read_until ("ENTER USERNAME <", reading_timeout)
    print console_output
    connection.write (username + 'rn')

    console_output = connection.read_until ("ENTER PASSWORD <", reading_timeout)
    connection.write (password + 'rn')
    print console_output

    connection.write ("***My command to follow the process***")
    console_output = connection.read_until ("here I can put any text, I use this only to get the output", 600)
    print console_output


    connection.write('***Command instead of Ctrl-C***') ***????***

    connection.close ()
except IOError:
    print "connection not established"