Ruby script to find password in LinkedIn leak, if present.

checker.rb

#!/usr/bin/env ruby

require 'digest/sha1'

if ARGV[0].nil?
  puts "Usage: checker [password]"
  puts "Checks the LinkedIn password file for a SHA-1 match of the provided password."
  exit 1
end

sha = Digest::SHA1.hexdigest(ARGV[0])

File.open('combo_not.txt').each_line.with_index do |line, idx|
  line.strip!

  if sha === line || "00000#{sha[5..-1]}" === line
    puts "    Line: #{idx}"
    puts " Content: #{line}"
    puts "Provided: #{sha}"
    exit
  end
end