#!/usr/bin/env ruby

# print a non-existing path variant by appending numeric suffixes.

def get_unique_path(path, suffix=nil)
  suffix ||= ""
  cand = "#{path}#{suffix}"
  return cand unless File.exist?(cand)
  i = 1
  loop do
    cand = "#{path}.#{i.to_s(32)}#{suffix}"
    return cand unless File.exist?(cand)
    i += 1
  end
end

ARGV.each { |p| puts get_unique_path(p, suffix) }