Splitting on /:\s*/ will save you some work. Actually, let's split on /:\s+/ to avoid needlessly splitting up the date.

We have two ways of looking at item 3 (formerly item 5): 1) It's either a space seperated list, and brackets need to be removed from the second (split approach), or 2) it's a string from which two substrings should be extractded (regexp approach). Since I'd use a regexp to remove the brackets, I might as well use a regexp for the whole thing.

I also added two sanity checks, in case the line doesn't appear as we think.

while (<DATA>) {
   chomp;

   my @parts = split /:\s+/, $_;
   next if $#parts < 3;

   my @parts_of_3 = $parts[3] =~ /^(\d+) <(.*)>$/;
   next unless @parts_of_3;

   my @result = ($parts[1], @parts_of_3);
   print(join(', ', @result), "\n");
}

__DATA__
Jul  6 14:36:41 moe postfix/smtp[15107]: A73DC113B63: to=<oetiker@conc
+entric.com>, relay=adamant.concentric.com[207.155.248.168], delay=17,
+ status=bounced (host adamant.concentric.com[207.155.248.168] said: 5
+54 <oetiker@concentric.com>: Recipient address rejected: Unknown or i
+nvalid user oetiker@concentric.com (in reply to RCPT TO command))

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In reply to Re: Parsing log files (still) by ikegami
in thread Parsing log files (still) by cajun

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