[NTLUG:Discuss] Scripting help

[Christopher Cox]

Ever thought of just pasting a whole lost of:

telnet device1
telnet device2
...
telnet deviceN

??

(sometimes Neanderthal works!)

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
> 
>