get options with getoptlong

install:

~# gem install getopt
Successfully installed getopt-1.3.7
1 gem installed
Installing ri documentation for getopt-1.3.7...
Installing RDoc documentation for getopt-1.3.7...

need: require 'getoptlong'

#!/usr/bin/ruby

require 'getoptlong'

opts = GetoptLong.new(
   [ "--test",             "-t",   GetoptLong::REQUIRED_ARGUMENT ],
   [ "--blub",             "-b",   GetoptLong::OPTIONAL_ARGUMENT ],
   [ "--help",             "-h",   GetoptLong::NO_ARGUMENT ],
   [ "--usage",            "-u",   GetoptLong::NO_ARGUMENT ],
   [ "--version",          "-v",   GetoptLong::NO_ARGUMENT ]
)

opts.each do |opt, arg|
 case opt
   when "--test"
     puts "we must extract :#{arg}:"
   when "--blub"
     puts "blub blub : #{arg} :"
   when "--help"
     puts "help yourself"
   when "--usage"
     puts "getoiptlong.rb"
     puts " -t, -b, -h, -u , -v"
   when "--version"
     puts "version 0.01"
   else
     puts "upsala"
 end
end