Put the keys in a file, sort them by key at the file level (there are any number of tools to do this). Scan the file, any duplicates will be adjacent so just skip them as you scan. You may even find that the sort program will remove the dupes for you.

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demerphq

In reply to Re: How to remove duplicates from a large set of keys by demerphq
in thread How to remove duplicates from a large set of keys by nite_man

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