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Code: Select all

 
f = open('rfc3280.txt')
words = []
for line in f:
    temp = line.split()
    for item in temp:
        if len(item) == 9:
            words.append(item)

for item in words:
    print item, words.count(item)

Code: Select all

local file = io.open("rfc3280.txt")
local t = string.lower(file:read("*all"))
file:close()


local wrd, maxcount = "", 0

for word in t:gmatch("%a+") do
	if #word == 9 then

		local count = 0
		for _ in t:gmatch(word) do
			count = count + 1
		end
		if count > maxcount then
			wrd = word
			maxcount = count
		end
	end
end