ruby - batch convert HTML to Markdown -

i have whole lot of html files live in 1 folder. need convert these markdown found couple gems out there great 1 one. question is... how can loop though each file in folder , run command convert these md on separate folder.

update

#!/usr/bin/ruby  root = 'c:/doc' indir =  file.join(root, '/input') outdir =  file.join(root, '/output') extension = nil filename = nil  dir.foreach(indir) |file|  # dir.foreach show current , parent directories  if file == '.' or item == '..'   next  end   # makes sure current iteration not sub directory  if not file.directory?(file)   extension = file.extname(file)   filename = file.basename(file, extension)  end   # strips off last string if contains period  if filename[filename.length - 1] == "."   filename = filename[0..-1]  end   # got stuck  reverse_markdown file.join(indir, filename, '.html') > file.join(outdir, filename, '.md') 

dir.glob(directory) {|f| ... } loop through files inside directory. example using redcarpet library this:

require 'redcarpet'  markdown = redcarpet::markdown.new(redcarpet::render::html, :autolink => true)  dir.glob('*.md') |in_filename|   out_filename = file.join(file.dirname(in_filename), "#{file.basename(in_filename,'.*')}.html")   file.open(in_filename, 'r') |in_file|     file.open(out_filename, 'w') |out_file|       out_file.write markdown.render(in_file.read)     end   end end