A handy utility for opening a bunch of files one at a time, in random order. Made as a studying helper utility.

rand-open.rb

require 'json'
require 'pathname'

dir = ENV["DIR"] || "Midterm"

images = Pathname.new(dir).children.select do |f|
  f.basename.to_s.match(/\A\d+\.(jpg|png)\z/)
end.shuffle

while !images.empty?
  one = images.shift
  STDERR.puts(JSON.dump({showing: one, remaining: images}))
  `open -W #{one}`
end