如何在Ruby上使用Nokogiri在终端上查看HTML？

Question

I'm trying to parse the HTML page of wikipedia using Nokogiri on Ruby(2.5.1) on Ubuntu, here is my code and what my terminal says back:

Any ideas on where the problem comes from ? I tried bundle install just before but nothing seems to work. Thanks in advance for any help brought !

require 'open-uri'
require 'nokogiri'

page = Nokogiri::HTML(open('https://en.wikipedia.org'))   
puts page   # => Nokogiri::HTML::Document```



```asus@asus-X75VD:~/THP/jour8/lib$ ruby test8.rb 
Nokogiri::HTML::Document```

Answer 1

Just so you know, Nokogiri has a command-line equivalent that lets you retrieve a page and play with it in IRB so you don't have to mess with writing code until you're ready to. If you enter:

nokogiri https://en.wikipedia.org

at the terminal prompt you'll drop into IRB and be able to do something like:

irb(main):002:0> @doc.to_s[0..10]
=> "<!DOCTYPE h"

or:

irb(main):005:0> @doc.to_s.size
=> 76139

You can view the page, write it to disk, all the normal things.