This gem contains the TomUtil module: require 'tomutil/parallel' include TomUtil parallel_each(list, &block): A function that runs the associated block each in its own thread for each item in the list. launch_threads(count, &block): A function that launches N threads with the same block. prepend_exec(str, exec_str): a function that will execute the exec_str and will prepend it's stdout output with str. require 'tomutil/padder' include TomUtil Padder: a class that I made for padding strings with spaces. It takes a list of strings and will pad any string to the max of the lengths of the strings in the list. require 'tomutil/hash' include TomUtil Added subset(keys) to Hash. Pass it a list of keys and you get a new Hash with only those keys and their values in it. HashComparer: a class for examining two hashes based on their keys.