interactive shell through ruby

open3.rb

require 'open3'

Open3.popen3("ssh -t myserver.net") do |stdin, stdout, stderr, th|
  # STDIN
  Thread.new { 
    until stdin.closed? do stdin.puts gets.strip; end
  }

  # STDOUT
  thr_out = Thread.new {
    while line = stdout.gets do puts line end
  }

  # STDERR
  thr_err = Thread.new {
    while line = stderr.gets do puts line end
  }

  Process::waitpid(th.pid) rescue nil # Thread may be dead
  thr_out.join
  thr_err.join
end