Expect + telnet problem

[burgerbisquit]

On Thu, Sep 10, 2009 at 1:09 AM, Arthur Meeks Meeks <
arthur.meeks.luppu at gmail.com> wrote:

> Hello,
>
> I'm creating an expect script to:
>
> telnet router
> execute command
> exit
>
> This seems to be quite easy when you have 1 router, the problem is I have a
> list of 40 routers, so I thought about creating a expect script but I have
> gotten some problems.
> The first one is...how to include all the machines?
> I thought about something like: for d in $(cat router_list); do
> expect_script $d;done
>
> And if that worked, the script would take $d and do:
>
> telnet $d
> execute my command
> exit
>
> But I don't know how to accomplish that as the script and the "expect
> --exact" output are different, one per router, basically because:
> expect -exact "telnet router23\r
> Trying 192.168.33.12...\r
> Connected to router23.test.\r
>
> Changes in all the routers, I have tried to delete that whole paragraph so
> it only expects "Login", but it doesn't work.
>
> And also...how to include the script in the "for" loop?.
>
> Any idea will be appreciated.
>
> Arthur.
>
>
>
>
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Hi.
I am not sure, but you could do something like this:

rlist.txt:
host1
host2
...


#! /usr/bin/tclsh
package require Expect

set fl [open [pwd]/rlist.txt]
set routers [read $fl]
set login "me"
set password "awsdzxcv"

foreach router $routers {
        spawn telnet $router
        expect {login:}
        send "$login\r"
        expect {Password:}
        send "$password\r"
        expect -re {\$}; # router prompt
        send "ls\r";       # your command
        expect -re {\$}
        send "exit\r"
        expect -re {\$}; #your host prompt
}

~B
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