band.rb

\/\/||/|/|\\|||/\\//|/////\|\/\|/|/||\/\|\/\|\\/\|/\/\/\|\\|/\||\/|||\\|||/\|/|\
\\/|////\\||///\\|\/\//|/\\|\\\|///\|\|/\//||\|\//||/\\/|\\||///\\\|\\//||/\||\|
\//\\||\|\/|/|/|\\|\////\/\/|||/|\|/\\\/|/|\///|\\\\\/\/|\\||\|/\\\\/|||\\\///|\
////|/|\//\\\/\\//\\||/\\///|\/\/\\|\\\|||/\||\\\//\///|\\\\/\|\|//\\/|\/\|\\|/|
||//||/|//|\//\///\\/\\/||\\\\|//\\//|\//\|\|\/||/|//\/\/\|//||\/|//\|\/\/\/||\|
/|/\|/|\\\\||/|\\/|\\\//\/|\/|/\/|//|/\|\\|\/|||/|||/\/\/||/\|||/\///\|/\|/|////
\\/\\///||\\\/|/||/\/|\///|\/|///\//|\//\\\\//\||/\\\|\\\//|\\||\\\//\\\|/\||///
\\////|\/||/|\||/||\|//\|/|/\|\\||/\|\\\\//\/|\\\\\\/\||\\//||/||//|\||/|\|///\\

cols = `tput cols`.to_i
8.times do
  cols.times do
    print %w[\\ / |].sample
  end
  puts
end