gistfile1.rb

#!/usr/bin/env ruby

Dir["*"].each do |f|
  if File.directory?(f) and File.directory?(File.join(f, ".git"))
    command = "cd #{f}; git #{ARGV.collect{|a| a.include?(" ") ? "\"#{a}\"" : a }.join(" ")}"

    puts "Command: #{command}"

    result = `#{command}`

    unless result =~ /nothing to commit/
      puts File.basename(f)
      puts "-"*10
      puts "\n"

      puts result

      puts "\n\n"
    end
  end