From: Tj Superfly Date: 2008-06-29T13:47:46+09:00 Subject: Random Generation of Characters How could you generate a list of all possible combination's of lowercase letters (a-z) and numbers (0-9). Example: ztd6dnck Now, I know of ways I can do this, but it's definitely not the most efficient or fastest way possible, which is why I'm reaching out to this community. It would be extremely nice if the program would do it in some type of order (aaaaaaaa, aaaaaaab...etc. - or something along those lines) because then it would know when it's complete. There can NOT be ANY repeats, and it must include all combination's. I know, it's a lot of combination's, which is why if I am going to tackle this task, it needs to be done right. I would want the list to be in an array which I could then export to a yaml file and save for later use. The only way I would know how to do it is if it randomly generated them, pushed them into an array, and checked each one it generated against the array to see if it exists already. I would never truly know if the list is complete, because it would always be checking itself. So, suggestions, codes, help?!?! Thanks to everyone in advance, I know this is a relatively large task, but this is a powerful community and programming language and I know it can be done. -- Posted via http://www.ruby-forum.com/.