I had a problem where i had two lists of DNs (ie. /o=org/ou=org - etc.) where listX was one record
longer than listY. i needed to nail the one that was absent from listY and present in listX. so i wrote a script
to populate %hash using the DNs from listY as the keys and then checked each DN from listX to see if it was defined as
a key in %hash. thus producing the culprit when the test failed. my question is - is this efficient ? is there a
better algorithm that is as easy to code ?

consideration: no non-core modules, we are dealing with only about 12000 records.
finally, for future reference, is there a name for the technique i used ?

humbly,
novitiate
"...goodnight you princes of main(e)"  --The Cider House Rules

In reply to using hash uniqueness to find the odd man by novitiate

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