For shorter strings, see Digest::MD5 and similar. Also, if the log grows on one end only, it should be enough to just remember the last line.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Trying to identify unique lines in a log file by choroba
in thread Trying to identify unique lines in a log file by aditya1977

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