OSX command for buring ISO image

$ hdutil burn image.iso

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HOWTO recover deleted files on an ext3 file system

Posting binary data using ruby

data = File.read('sample.xml')
url = URI.parse('http://localhost:3000/update')
http = Net::HTTP.new(url.host, url.port)
response, body = http.post(url.path, data, {'Content-type'=>'text/xml;
charset=utf-8'})

Code: Auto-thumbnail using Magick

 def auto_thumbnail
  @board = Board.find(params["id"])
  pic    = Magick::Image.read(@board.thumbnail_image).first
  thumb  = pic.resize(200, 145)
  @response.headers["Content-type"]= thumb.mime_type
  render :text => thumb.to_blob
end