Add examples.

example.rb

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+#!/usr/bin/env ruby
+# Encoding: UTF-8
+
+## EasyOptions Example
+## Copyright (C) Someone
+## Licensed under XYZ
+##
+## This program is an example of EasyOptions. It just prints the options and
+## arguments provided in command line. Usage:
+##
+##     @script.name [option] ARGUMENTS...
+##
+## Options:
+##     -h, --help              All client scripts have this, it can be omitted.
+##     -o, --some-option       This is a boolean option. Long version is
+##                             mandatory, and can be specified before or
+##                             after short version.
+##         --some-boolean      This is a boolean option without a short version.
+##         --some-value=VALUE  This is a parameter option. When calling your script
+##                             the equal sign is optional and blank space can be
+##                             used instead. Short version is not available in this
+##                             format.
+
+require_relative "easyoptions"
+
+# Boolean options
+puts "Option specified: --some-option"  if $options[:option]
+puts "Option specified: --some-boolean" if $options[:some_boolean]
+
+# Parameter option
+value = $options[:some_value]
+if value
+    value = $options[:some_value]
+    type = value.is_a?(Fixnum)? "number" : "string"
+    puts "Option specified: --some-value is #{value} (a #{type})"
+end
+
+# Arguments
+$arguments.each do |argument|
+    puts "Argument specified: #{argument}"
+end

example.sh

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+#!/bin/bash
+
+## EasyOptions Example
+## Copyright (C) Someone
+## Licensed under XYZ
+##
+## This program is an example of EasyOptions. It just prints the options and
+## arguments provided in command line. Usage:
+##
+##     @script.name [option] ARGUMENTS...
+##
+## Options:
+##     -h, --help              All client scripts have this, it can be omitted.
+##     -o, --some-option       This is a boolean option. Long version is
+##                             mandatory, and can be specified before or
+##                             after short version.
+##         --some-boolean      This is a boolean option without a short version.
+##         --some-value=VALUE  This is a parameter option. When calling your script
+##                             the equal sign is optional and blank space can be
+##                             used instead. Short version is not available in this
+##                             format.
+
+# Bash version
+source easyoptions.sh "$@" || exit
+
+# Ruby version (faster)
+# eval "$(from="$0" ./easyoptions.rb "$@" || echo exit 1)"
+
+# Boolean and parameter options
+[[ -n "$some_option"  ]] && echo "Option specified: --some-option"
+[[ -n "$some_boolean" ]] && echo "Option specified: --some-boolean"
+[[ -n "$some_value"   ]] && echo "Option specified: --some-value is $some_value"
+
+# Arguments
+for argument in "${arguments[@]}"; do
+    echo "Argument specified: $argument"
+done