Find

The Find module supports the top-down traversal of a set of file paths.

For example, to total the size of all files under your home directory, ignoring anything in a "dot" directory (e.g. $HOME/.ssh):

require 'find'
total_size = 0
Find .find (ENV ["HOME"]) do |path|
 if FileTest .directory?(path)
 if File .basename(path)[0] == ?.
 Find .prune  # Don't look any further into this directory.
 else
 next
 end
 else
 total_size += FileTest .size(path)
 end
end

Related methods