ruby net-ssh登录shell

def execute_in_shell!(commands, shell="bash")
  channel = session.open_channel do |ch|
    ch.exec("#{shell} -l") do |ch2, success|
      # Set the terminal type
      ch2.send_data "export TERM=vt100n"

      # Output each command as if they were entered on the command line
      [commands].flatten.each do |command|
        ch2.send_data "#{command}n"
      end

      # Remember to exit or we'll hang!
      ch2.send_data "exitn"

      # Configure to listen to ch2 data so you can grab stdout
    end
  end

  # Wait for everything to complete
  channel.wait
end

Net::SSH.start(@config.host, @config.user, :port => @config.port, :keys => @config.key, :config => true) do |session|
  session.open_channel do |channel|
    channel.request_pty
    channel.send_channel_request "shell" do |ch, success|
      if success
        ch.send_data "envn"
        ch.send_data "#{command}n"
        ch.on_data do |c, data|
          puts data
        end
      end
      channel.send_data "exitn"

      channel.on_close do
        puts "shell closed"
      end
    end
  end
end