Count files by extensicount-files-by-extension.rbon

count-files-by-extension.rb

require 'rubygems'
require 'activesupport'

ct = Hash.new(0)
while gets
  ma = $_.match %r/\.(\w{2,10})$/
  ct[ma[1]] += 1 if ma
end
y ActiveSupport::OrderedHash[ct.sort_by {|k,v| v}].reject {|k,v| v<50}

Purpose

Count files by certain extensions so I could exclude them in the CtrlP plugin for Vim.

By default, this will show you all extensions with > 50 instances in your tree.

Usage

$ find | ruby count-files-by-extension.rb

Used in: https://gist.github.com/3751038