From: "ara.t.howard" <ara.t.howard@...>
Date: 2008-10-04T00:52:35+09:00
Subject: Re: IO.popen fails to pen persistent ssh connection


On Oct 3, 2008, at 8:51 AM, Hector Quiroz wrote:

> '/scripts/ruby/testssh.rb:4: undefined method `exitstatus' for
> nil:NilClass (NoMethodError)'.
>
> I know ssh is working and I can run ssh commands to #{hostname} using
> #{username} credentials. I use this exact code in other scripts from  
> the
> same workstation, ssh'ing to the same remote host and it works fine.
>
> I've copied the following lines and pasted them unto a new file and it
> still fails with the above message.
>
>
> #!/usr/bin/ruby -w
> ssh = IO.popen("ssh #{username}@#{hostname} -T", "w+")
> status = $?
> break unless (status.exitstatus == 0)
>

the process has not exited yet - $? is therefore nil.

a @ http://codeforpeople.com/
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