(Update: meanwhile it occurred to me that the stated skillset of the co-worker doesn't include regexps, so "hint see perlretut" might also help)

The idea of "instances of each message" is a bit vague. For example, it doesn't say whether the IP as well as the date-time of the message may vary while still being considered instances of the same message. I'd specify exactly what is being allowed to vary within the implied relationship "instances of", even if it turns out to be just the time of the message.

One world, one people

In reply to Re: Log parsing exercises for Perl beginner - reasonable? by anonymized user 468275
in thread Log parsing exercises for Perl beginner - reasonable? by mikeraz

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