find-and-replace

#!/usr/bin/env ruby

find = ARGV[0]
replace = ARGV[1]
unless find && replace
  puts "You must provide two arguments, find-and-replace <find> <replace>"
  exit
end

list = `ack-grep #{find}`

list.split("\n").each do |l|
  filename = l.split(':').first
  f = File.new(filename).read
  f.gsub!(/#{find}/, replace)
  File.open(filename, 'w') do |io|
    io << f
  end
end