From: Brian Candler <b.candler@...>
Date: 2009-06-01T22:09:32+09:00
Subject: Re: How can I get command's result code, which executing via ssh

One other point. It's very dangerous to do

    ch.foo { |ch| ... }

because (in ruby 1.8) 'ch' is bound to the same variable in both cases. 
That is, the value assigned to the block parameter also changes the 
outer 'ch'. So you should call them something different.

The finished program becomes:

require 'rubygems'
require 'net/ssh'
Net::SSH.start('localhost', 'yourname') { |ssh|
  ssh.open_channel { |chan|
    chan.on_request('exit-status') { |ch, data|
      puts "process terminated with exit status: #{data.read_long}"
    }
    chan.exec('false') { |ch, success| puts success }
  }
}
-- 
Posted via http://www.ruby-forum.com/.