Ruby to read a shapefile with georuby.

geo_ruby.rb

#*********************************************
# Ruby script to read shapefile.
#*********************************************
#
require 'geo_ruby'
require 'geo_ruby/shp4r/shp'

include GeoRuby::Shp4r
include GeoRuby::SimpleFeatures

class Shp
  def initialize
    @shpfile = "/path/to/shapefile.shp"
  end

  def exec
    begin
      ShpFile.open(@shpfile) do |shp|
        fields = shp.fields
        shp.each do |s|
          datas = s.data
          puts fields.map { |f| datas[f.name] }.join(",")
        end
        puts "---"
        puts fields.map { |f| f.name }.join(",")
        puts "---"
        puts "Counts: #{shp.record_count}"
      end
    rescue => e
      STDERR.puts "[ERROR][#{self.class.name}.#{__method__}] #{e}"
      exit 1
    end
  end
end

Shp.new.exec