Reading my nway through the pickaxe book. Saw this code on page 108:
  aFile = File.new("data.dat")
 aFile.each_byte {|ch| putc ch; putc ?.}

I'm not following what this does, can anyone help me out?
  putc ?.

Thanks very much!
 
Christopher J. Meisenzahl CPS, CSTE
Senior Software Testing Consultant
Spherion
christopher.j.meisenzahl / citicorp.com