Parse array of links and downloading them using Ruby

Question

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How do I download a binary file over HTTP using Ruby?

I have an array called pdf_links containing links to PDF files collected by the Mechanize gem.

http://site/file1.pdf
http://site/file2.pdf
http://site/file3.pdf
http://site/file4.pdf
http://site/file5.pdf
http://site/file6.pdf
http://site/file7.pdf

I need to save all the PDF files to my directory.

What is the best way to do it with Ruby?

I tried to do it using *nix string but I'm receiving an error:

pdf_links.each do |d|
    system %x{ wget #{d} }
end

score 3 · Answer 1 · edited May 23 '17 at 12:17

3

There is a save method in mechanize to store it

Save WWW::Mechanize::File to disk using FileUtils

http://mechanize.rubyforge.org/Mechanize/File.html#method-i-save

or you can use ruby lib 'open-uri'

 require 'open-uri'
 pdf_links.each do |link|
  File.open(file_path_to_store, 'wb') {|f| f.write(open(link).read)}
 end

edited May 23 '17 at 12:17

Community

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1

answered Jul 28 '12 at 14:12

Pritesh Jain

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score 2 · Answer 2 · answered Jul 28 '12 at 14:06

2

Mechanize can do it:

agent.get(d).save

answered Jul 28 '12 at 14:06

pguardiario

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Thanks a lot, found a mistake in array first url was wrong due to mistake on the site. – jagga99 Jul 28 '12 at 14:14

Parse array of links and downloading them using Ruby

2 Answers2