A couple minor points (and maybe I'm a bit too new to PM to make the comments):

  1. You probably should have this in a new question, not a reply on the previous question, since it's now a new question.
  2. You probably should try something yourself, and then come back if it doesn't work. Or even if it does - share your answer and get feedback on it.
One WTDI is to use a simplified state machine: 
my $match;
while (<FH>)
{
  print C $_ if $match and /^abcde.*PARTNAME$/;
  $match = /xyzdf$/;
}

[download]
This will set $match to true if the current line matches xyzdf at the end, false otherwise. The next time through the loop, we only check your second-line regexp if $match is already true (that is, the previous line matched the other regexp).

In reply to Re^4: looking for speed!! large file search and extract by Tanktalus
in thread looking for speed!! large file search and extract by smbs

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