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

[Johnson, W. <wr...@sa...>]

It took me a long time, but I came to the same conclusion a couple years =
ago.

If your installation permits, you can use -o 'StrictHostKeyChecking no' =
on the ssh command line and you won't have to worry about keys at all. =
They will be automatically set up for you.

% ssh -o 'StrictHostKeyChecking no' <yourhost>

Note the ticks on the option. Good luck.

Wilbur R. Johnson

Software Systems
Systems Engineering and Analysis
Sandia National Laboratories
PMTS - Software Research and Development=20




-----Original Message-----
From: exp...@li... on behalf of =
Roland Giersig
Sent: Sat 3/17/2007 1:00 PM
To: al....@ac...
Cc: exp...@li...
Subject: Re: [Expectperl-discuss] Multi Line Prompts - Help
=20
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 =3D 'Are you sure you want to continue connecting (yes/no)? '; =
 - This
> is the last line from the first prompt above.
>
>
>
> $which =3D $exp->expect ( 20, "$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.
>
>
>
>
>
>
>
>
>
>
>
>
> This message is for the designated recipient only and may contain
> privileged, proprietary, or otherwise private information. If you have
> received it in error, please notify the sender immediately and delete =
the
> original. Any other use of the email by you is prohibited.
> =
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