quick ruby one liner to rotate banner'ed text

banner_rotate.rb

rotated = []
y = 0
`banner -w 30 W T F`.split("\n").each { |line| 
  x = 0
  line.each_char { |char| 
    rotated[x] ||= []
    rotated[x][y] = char
    x += 1 
  }
  y += 1
}
puts rotated.reverse.map { |line| 
  line.map!{ |char| char || ' '}
  line.join('') 
}.join("\n")

example.txt

Some version of banner will rotate the text for you. The version provided by osx doesn't. So I whipped this up. I've made no attempt to simplify, optimize, or make it pretty. Its one-time use.

But you should really be using figlets.

[31] pry(main)> rotated = []; y = 0; `banner -w 30 W T F`.split("\n").each { |line| x = 0; line.each_char { |char| rotated[x] ||= []; rotated[x][y] = char; x += 1 }; y += 1}; puts rotated.reverse.map { |line| line.map!{ |char| char || ' '}; line.join('') }.join("\n")
####        ###        ##########        ##########
  ##         #         ##  ##   #         ##     ##
  ##                   ##  ##   #         ##      #
  ##        #          #   ##   #         ##      #
  ##        #              ##             ##       
  ###       #              ##             ##       
   ##       #              ##             ##       
   ##   #                  ##             ##    #  
   ##   #  #               ##             #######  
   ##   #  #               ##             ##   ##  
   ### ##  #               ##             ##    #  
    ## ###                 ##             ##       
    ## ####                ##             ##       
    ## ####                ##             ##       
    ### ###                ##             ##       
     ## ###                ##             ##       
     ## ##                 ##             ##       
     ##  #                 ##             ##       
     #   #                 ##             ##       
     #   #                 ##             ##       
         #                ####           ####