#!/usr/bin/ruby

BDD_MP3 = "/home/zoso/lib/mp3.lst"

regexp  = Regexp.new(ARGV[0], Regexp::IGNORECASE)
n_disco = 'Desconocido'

File.readlines(BDD_MP3).each do |linea|
    case linea
    when /^\* cd-mp3 -(\d+)/
        n_disco = $1
    when regexp
        puts "cd-mp3 -#{n_disco} - #{linea.chomp}"
    end
end