I would like a new namespace, Sort::Indices. A brief description follows. Danke. Sort::Indices supplies a function that accepts a list and, instead of returning the same list in a sorted form, returns the indices that would result in a sorted list. For example: sortind(qw/m o z a r t/) returns (3,0,1,4,5,2) This is helpful if you have an array of arrays, or simply two or more arrays, that need to be sorted in corresponding order.