The way you store the "Case-Url" and the "Req-URL" as hashes causes the loss of the link between the two. I don't know whether that is important or not. A rather simple approach should do in this case: 

while(<DATA>){
    print "$1 - " if /\[.*\] - (.*)/i;
    print "$1\n" if /[*]+([^*]+)/;
}

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In reply to Re^2: perl regex extraction from a large input file by hdb
in thread perl regex extraction from a large input file by Anonymous Monk

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