essence of what man does

gistfile1.rb

def troff_stuff
  Zlib::GzipReader.open(@file) do |troff|
    troff.read
  end
end
  
def exec_groff_less
  IO.popen("groff -Wall -pt -mandoc -Tascii | less -J", 'w') do |io|
      io.write troff_stuff
  end
end