A program that will create a word list for example aaaaaaa-zzzzzzz in all the possible combinations?

Question

I am trying to make a word list that will combine numbers and letters ranging from 6-20 leters in all the possible combinations but it will takes years if i type it my self. For example aaaaa next would be aaaab and so on untill reaching 20 z's

Answer 1

You could do this with nested loops. In pseudocode, a solution that handles only 6-letter words might look like:

for l1 = 'a' to 'z'
for l2 = 'a' to 'z'
for l3 = 'a' to 'z'
for l4 = 'a' to 'z'
for l5 = 'a' to 'z'
for l6 = 'a' to 'z'

print l1+l2+l3+l4+l5+l6
}
}
}
}
}
}

However, that will yield 26^6 = 308,915,776 separate words. Assuming a unix system with LF at the end of every word, this consumes 2,162,410,432 = 2GB. So, it can be done, but it's not a great idea. In particular, reading this list into memory will be problematic unless you have a lot of RAM, and searching it when stored on disk will be very, very, slow.

It just gets worse with longer words. I suggest you rethink your approach.

Answer 2

Ah, you do realize that you are going to end up with many, many millions (probably billions) of combinations dont you?

Answer 3

Here are some sources for word lists.
They are very common.

http://www.softdepia.com/advanced_wordlist_download_5427.html
http://www.sandroid.org/GutenMark/download.html
http://www.net-comber.com/wordurls.html
http://www.beiks.com/palm/showtitle.asp?TitleID=353
http://www.securiteam.com/tools/5ZP0N20GAW.html