1. In a string? s/(word1)\n(word2)/$1 $2/g;
  2. In an array? Search for lines starting/ending with the combination you want and splice them up. Or just re-use the above: 
        @array=<FH>;
    $_=join('', @array);
    s/(word1)\n(word2)/$1 $2/g;
    @array=split(/\n/, $_);

    [download]
  3. In a file? See #2

In reply to Re: Concatenating lines found between two words by clintp
in thread Concatenating lines found between two words by ploaiza

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