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Re: Executing ssh from perl
- From: Igor Pechtchanski <pechtcha at cs dot nyu dot edu>
- To: Stephen Studley <sstudley at adobe dot com>
- Cc: cygwin at cygwin dot com
- Date: Thu, 18 Nov 2004 14:12:39 -0500 (EST)
- Subject: Re: Executing ssh from perl
- References: <p0610050abdc2a0cde006@[153.32.225.133]>
- Reply-to: cygwin at cygwin dot com
On Thu, 18 Nov 2004, Stephen Studley wrote:
> Apologies in advance if this a well covered issue, as I'm pretty sure it has
> been. I did look through the lists email archive and found too many variations
> on similar issues to be helpful.
>
> Problem: ssh command hangs when executed from perl script using back-tics.
>
> The same command (no back-tics) works as expected from Windows cmd shell and
> cygwin terminal.
>
> I need to capture the return results from the command. i.e.
> my $str = `ssh <user>@machine ls <some dir>`;
>
> In looking at the debug output, I simply never get a response from the remote
> machine. The last line in the problem scenario is:
> debug3: channel 0: will not send data after close
>
> The successful scenario simply returns the expect stdout:
> debug3: channel 0: will not send data after close
> <some dir>/<files>
>
> Thanks in advance.
>
> Stephen
Try giving the "-n" argument to ssh.
Igor
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