Your post led me to believe your user ID's would be numeric. I don't think I quite understand what all of the "1, 2, ... , n | n != 1 or 2" is supposed to mean. ID's incrementing but starting at 3? If your intent is to associate a username and an ID, by all means a hash is what you want. See the documentation for
sort, and perhaps
How do I sort a hash (optionally by value instead of key)?. To find the largest ID, you can use 'max' from
List::Util on the
values of the
%hash, but you're better off storing that in a variable unless your script only needs to use this once.
Regardless, this is pretty basic hash usage stuff. You would benefit more from a book like Learning Perl or the Perl Cookbook.
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