tilesheet_renamer.rb

require "mediawiki-butt"

butt = MediaWiki::Butt.new("https://ftb.gamepedia.com/api.php", assertion: :bot)

puts "Enter your password"
STDOUT.flush
butt.login("ESAEBSAD@ESAEBSAD-bot", gets.chomp)

butt.get_category_members("Tilesheets", "file").each do |tilesheet|
	match = /(File:Tilesheet [A-Z\d-]+ \d\d)\.png/.match(tilesheet)
	next if match.nil?
	new_loc = "#{match[1]} 0.png"
	puts "#{tilesheet} -> #{new_loc}"
	butt.move(tilesheet, new_loc) # Note here a redirect will be automatically created.
end