Re: [Expectperl-discuss] Multi Line Prompts - Help

[Roland G. <rgi...@cp...>]

A classical example of a problem best solved by NOT using Expect... :-)

Just set up ssh keys so you can log in without giving a password. This
means that you have to log in to each server once to get its
fingerprint into your known_hosts file and to add your public key to
the authorized_keys file.

Hope this helps...

Roland

On 3/15/07, al....@ac... <al....@ac...> wrote:
>
> Hello everyone,
>
> I need a bit of help with figuring out a problem with my Expect Perl script
> and was hoping someone on the list might be able to point me in right
> direction.  I use Expect Perl module in my script for executing commands
> remotely on some of my servers.  The script uses Open SSH (4.2p1) on Solaris
> 2.8 for logging into each remote server. The remote servers run on a
> proprietary UNIX OS which can send back any of the following single or multi
> line prompts during the SSH attempt:
>
>
>
> The authenticity of host 'testserver (10.10.11.12)' can't be established.
>
> RSA key fingerprint is
> 8e:be:a4:4c:55:09:e8:72:f8:2b:e9:60:0c:84:f6:39.
>
> Are you sure you want to continue connecting (yes/no)?
>
>
>
> or
>
>
>
> User1@testserver's password:
>
>
>
> or
>
>
>
> Blank line
>
> Blank line
>
> Data ONTAP (testserver.domainname.com)
>
> login:
>
>
>
> For checking the prompts I am trying something similar to the following:
>
>
>
> $Prompt = 'Are you sure you want to continue connecting (yes/no)? ';  - This
> is the last line from the first prompt above.
>
>
>
> $which = $exp->expect ( 20, "$user_id\@$host_ip\'s password: ",$Prompt,
> "login: ","[local_host_name%#]" );
>
>
>
> I am using $which variable to find out which prompt is matched.  This
> appears to be working for the first two prompts but not for the third one.
> I enabled logging to a file and noticed the following when opened the log
> file via vi:
>
>
>
> ^M
>
> ^M
>
> Data OnTap (testserver.domainname.com)^M
>
> login:
>
>
>
> I can't tell if there is any other hidden character in the above prompt. I
> don't know what regular expression to use to match for the above multi line
> prompt and am not sure why the $Prompt work for the first multi line prompt.
>  Currently the following packages are installed on my Sun box:
>
>
>
> expect-5.43.0-sol8-sparc-local
>
> Expect-1.20
>
> IO-Tty-1.07
>
> perl-5.8.7-sol8-sparc-local
>
>
>
> Any help is appreciated.
>
>
>
>
>
>
>
>
>
>
>
>
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