[NTLUG:Discuss] Scripting help

[Leroy Tennison]

I understand, the issue is that the Linux host I'm connecting to via ssh 
(Putty) has a very specific purpose and may not have all the extras 
installed on it.

On 10/13/2014 09:00 PM, Christopher Cox wrote:
> Just for clarification, it's needed on the client side.... not on the servers
> you're telnetting to.
>
> And there are expect choices, you might not have tcl expect, but might have
> pexpect (python) or Expect.pm (perl)....
>
> (sorry about the top of thread post... seemed expected... excuse the pun)
>
> On 10/13/2014 08:41 PM, Leroy Tennison wrote:
>> I hadn't thought about expect even though I've used it before, thanks.  Now the
>> question is "Is it installed on the Linux machine i have to use?"
>>
>> On 10/13/2014 12:17 PM, Dave Jones wrote:
>>> On Fri, Oct 10, 2014 at 11:06 PM, Leroy Tennison
>>> <leroy.tennison at verizon.net> wrote:
>>>> Well, interesting result, it obviously did telnet to the devices (got Trying
>>>> .., Connected to..., Escape character is ..)  but then "Connection closed by
>>>> foreign host." before ever showing me the login screen (three times, once
>>>> for each device in my list).  BTW, I'm discovering that things which work on
>>>> bash in SuSE 12.2 (bash 4.2.45(1)) don't work on RHEL 5 (bash 3.2.25(1)).
>>>>
>>>> On 10/09/2014 09:13 PM, Christopher Cox wrote:
>>>>> On 09/24/2014 10:24 PM, Leroy Tennison wrote:
>>>>>> I'm trying to get telnet to repetitively connect to a newline-delimited
>>>>>> list of
>>>>>> devices.  In other words, if I have device1, device2 and device3 then
>>>>>> what I
>>>>>> want is:
>>>>>>
>>>>>> telnet device1
>>>>>> telnet device2
>>>>>> telnet device3
>>>>>>
>>>>> xargs -n1 telnet <<HERE
>>>>> device1
>>>>> device2
>>>>> device3
>>>>> ...
>>>>> deviceN
>>>>> HERE
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> http://www.ntlug.org/mailman/listinfo/discuss
>>>>>
>>>> _______________________________________________
>>>> http://www.ntlug.org/mailman/listinfo/discuss
>>> Have  you tried expect?  I have a very complex script that telnet's
>>> into Cisco routers
>>> all over the country and does pings to various places then puts the
>>> output into a CSV
>>> file for easy import into a report spreadsheet.
>>>
>>> You may have to do a bit of trial-and-error from the command line with
>>> expect to the
>>> devices but once you get that part figured out, wrap a while loop around it.
>>>
>>> while read DEVICE; do
>>>     expect << EOF
>>>       spawn telnet $DEVICE
>>>       expect "Username:"
>>>       send "blah"
>>>       (continue expect commands...)
>>>       send "exit"
>>>       exit
>>> EOF
>>> done < inputfile
>>>
>>> inputfile is a list of the devices each on their own line.
>>>
>>> Dave
>>>
>>> _______________________________________________
>>> http://www.ntlug.org/mailman/listinfo/discuss
>>>
>>
>> _______________________________________________
>> http://www.ntlug.org/mailman/listinfo/discuss
>>
>>
>
> _______________________________________________
> http://www.ntlug.org/mailman/listinfo/discuss
>