Ruby find in files

fnd.rb

#!/usr/bin/ruby

TOTAL_COLS = `tput cols`
FILENAME_WIDTH = 70
LINENUM_WIDTH = 5
TEXTSAMPLE_WIDTH = TOTAL_COLS.to_i - 90

search = ARGV[0]

if search
  puts "Searching for #{search} in #{Dir.pwd}."

  files = Dir["**/*"].reject { |f| File.directory? f }

  files.each do |f|
    begin
      File.readlines(f).select { |line| line.include? search }.each_with_index do |l, i|
        puts "#{f[0, FILENAME_WIDTH].rjust FILENAME_WIDTH, ' '} @ line #{i.to_s.rjust LINENUM_WIDTH, ' '}: #{l[0, TEXTSAMPLE_WIDTH]}"
      end
    rescue
    end
  end
end