how to get files count in a directory using ruby

Question

using ruby how to get number of files in a given Directory,the file count should include count from recursive directories.

Eg: folder1(2 files) -----> folder2(4 files)

Answer 1

Using ~/Documents as example.

One line code:

Dir['~/Documents'].length

For longer paths one line can be less readable, so:

path = '~/Documents/foo/bar'

Dir[path].length