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quote "And unlike Windows, bash will retain this history even after you have logged out and logged back in."

Jack, don't know where you get this idea. Unless you haven't used Windows since about 1992 or so with Win3X, because on almost all the systems I've used with 9X and up, the run command will list all the previous commands I've used up to however many I want, unless I configure it NOT to keep them.
Why would you want to keep 500 plus commands history anyhow?