domgetter · January 4, 2016 01:39
diff --git a/gistfile1.rb b/gistfile1.rb
 # reads file backwards by byte

 File.open("some_file.txt", "r") do |file|
  file.size.downto(0) do |byte|
    file.pos = byte
    char = file.read(1)
    puts char unless char =~ /\r/
  end
 end


 9
 8
 7
 6

 5
 4
 3
 2

 8
 7
 6
 5

 4
 3
 2
 1
 => 24
diff --git a/some_file.txt b/some_file.txt
 1234
 5678
 2345
 6789
	# reads file backwards by byte

	File.open("some_file.txt", "r") do \|file\|
	file.size.downto(0) do \|byte\|
	file.pos = byte
	char = file.read(1)
	puts char unless char =~ /\r/
	end
	end


	9
	8
	7
	6

	5
	4
	3
	2

	8
	7
	6
	5

	4
	3
	2
	1
	=> 24