# File lib/rhc/commands/app.rb, line 312
    def ssh(app_name)
      raise ArgumentError, "No application specified" unless app_name.present?
      raise OptionParser::InvalidOption, "No system SSH available. Please use the --ssh option to specify the path to your SSH executable, or install SSH." unless options.ssh or has_ssh?

      rest_app = rest_client.find_application(options.namespace, app_name)

      say "Connecting to #{rest_app.ssh_string.to_s} ..."
      if options.ssh
        debug "Using user specified SSH: #{options.ssh}"
        Kernel.send(:system, "#{options.ssh} #{rest_app.ssh_string.to_s}")
      else
        debug "Using system ssh"
        Kernel.send(:system, "ssh #{rest_app.ssh_string.to_s}")
      end
    end