Thread: [Expectperl-discuss] query

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expectperl-discuss

[Expectperl-discuss] query

From: Sujai K. <suj...@ta...> - 2007-05-08 11:45:17

Hello everybody.,

		I am new to expect. I want to execute some commands after SSH'ing into a
machine say 10.2.3.4. I have written script to automate ssh and that is
happening fine. After SSH'ed into the machine it exits from the machine. How
to execute a command in the SSH'ed machine.

Thanks and Regards.,
Sujai.

Re: [Expectperl-discuss] query

From: Ken I. <fn...@ua...> - 2007-05-08 17:24:26

On Tue, May 08, 2007 at 05:16:40PM +0530, Sujai Kumar wrote:
> Hello everybody.,
> 
>   I am new to expect. I want to execute some commands after SSH'ing
> into a machine say 10.2.3.4. I have written script to automate ssh and
> that is happening fine. After SSH'ed into the machine it exits from
> the machine. How to execute a command in the SSH'ed machine.

If all you want to do is issue commands, ssh is capable of doing that
directly, e.g., (from a shell prompt):

    $ ssh 10.2.3.4  tail /var/log/syslog

This can be automated by setting up key-based authentication and
ssh-agent, e.g., using the keychain utility.

IMHO Expect.pm and such are called for when you want to automate
interactivity with the remote system, i.e., generate output commands
based on the responses seen.

Ken

-- 
Ken Irving, fn...@ua..., 907-474-6152
Water and Environmental Research Center
Institute of Northern Engineering
University of Alaska, Fairbanks

Re: [Expectperl-discuss] query

From: sujai <suj...@ta...> - 2007-05-09 08:17:11

Hello ken.,
              I want to execute multiple commands on the ssh'ed machine.I
want to execute iperf server.
sujai 


Ken Irving wrote:
> 
> On Tue, May 08, 2007 at 05:16:40PM +0530, Sujai Kumar wrote:
>> Hello everybody.,
>> 
>>   I am new to expect. I want to execute some commands after SSH'ing
>> into a machine say 10.2.3.4. I have written script to automate ssh and
>> that is happening fine. After SSH'ed into the machine it exits from
>> the machine. How to execute a command in the SSH'ed machine.
> 
> If all you want to do is issue commands, ssh is capable of doing that
> directly, e.g., (from a shell prompt):
> 
>     $ ssh 10.2.3.4  tail /var/log/syslog
> 
> This can be automated by setting up key-based authentication and
> ssh-agent, e.g., using the keychain utility.
> 
> IMHO Expect.pm and such are called for when you want to automate
> interactivity with the remote system, i.e., generate output commands
> based on the responses seen.
> 
> Ken
> 
> -- 
> Ken Irving, fn...@ua..., 907-474-6152
> Water and Environmental Research Center
> Institute of Northern Engineering
> University of Alaska, Fairbanks
> 
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
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> https://lists.sourceforge.net/lists/listinfo/expectperl-discuss
> 
> 

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Re: [Expectperl-discuss] query

From: Roland G. <rgi...@cp...> - 2007-05-09 11:17:30

I dont know about iperf server but I would guess that it is not an
interactive application and that you only want to execute some
programs one after another, is this right? Then you could write a
shell script and start that remotely via ssh.

Roland

On 5/9/07, sujai <suj...@ta...> wrote:
>
> Hello ken.,
>               I want to execute multiple commands on the ssh'ed machine.I
> want to execute iperf server.
> sujai
>
>
> Ken Irving wrote:
> >
> > On Tue, May 08, 2007 at 05:16:40PM +0530, Sujai Kumar wrote:
> >> Hello everybody.,
> >>
> >>   I am new to expect. I want to execute some commands after SSH'ing
> >> into a machine say 10.2.3.4. I have written script to automate ssh and
> >> that is happening fine. After SSH'ed into the machine it exits from
> >> the machine. How to execute a command in the SSH'ed machine.
> >
> > If all you want to do is issue commands, ssh is capable of doing that
> > directly, e.g., (from a shell prompt):
> >
> >     $ ssh 10.2.3.4  tail /var/log/syslog
> >
> > This can be automated by setting up key-based authentication and
> > ssh-agent, e.g., using the keychain utility.
> >
> > IMHO Expect.pm and such are called for when you want to automate
> > interactivity with the remote system, i.e., generate output commands
> > based on the responses seen.
> >
> > Ken
> >
> > --
> > Ken Irving, fn...@ua..., 907-474-6152
> > Water and Environmental Research Center
> > Institute of Northern Engineering
> > University of Alaska, Fairbanks
> >
> > -------------------------------------------------------------------------
> > This SF.net email is sponsored by DB2 Express
> > Download DB2 Express C - the FREE version of DB2 express and take
> > control of your XML. No limits. Just data. Click to get it now.
> > http://sourceforge.net/powerbar/db2/
> > _______________________________________________
> > Expectperl-discuss mailing list
> > Exp...@li...
> > https://lists.sourceforge.net/lists/listinfo/expectperl-discuss
> >
> >
>
> --
> View this message in context: http://www.nabble.com/query-tf3709123.html#a10390185
> Sent from the Perl - Expectperl-Discuss mailing list archive at Nabble.com.
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> Expectperl-discuss mailing list
> Exp...@li...
> https://lists.sourceforge.net/lists/listinfo/expectperl-discuss
>

Re: [Expectperl-discuss] query

From: Adrian P. <ad...@ph...> - 2007-05-09 11:43:10

>>>>> "Sujai" == sujai  <suj...@ta...> writes:

    Sujai> Hello ken., I want to execute multiple commands on the
    Sujai> ssh'ed machine.I want to execute iperf server.  sujai

I have a perl module that I never quite got around to CPANning (wasn't
sure how to and never made time to figure it out) eventually named
IPC::RemoteSession which allows one to run commands (and eval perl) on
a remote connection (assuming ssh keys are setup correctly) :-

  $conn = IPC::RemoteSession (host => 'ahost');
  $output = $conn->cmd ('a shell command');
  $output = $conn->cmd ('another shell command');
  my $result = $conn->perl ('some perl to eval');

Let me know if you'd like a copy.

Sincerely,

Adrian Phillips

-- 
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