Hello Monks, I am seeking perl wisdom again. I have a big file with 5000 lines. I want to print lines between three patterns(basically a block of code). I tried making multi-line regex as follows but seems no help. Till now I tried, 

    my $beg = qr/^\s*APP>\sSTART_PARTU_8X8\n\s*APP>\sPARTITION_SPLIT/;
    my $end = qr/^\s*APP>\sEND_PARTU_8X8/;
    if (/$beg/../$end/){
    print "$line\n";
    }

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Input data: 

    APP> START_PARTU_8X8
    APP> PARTITION_NONE
    START_PARTU_16X16
    APP> END_PARTU_8X8

    APP> START_PARTU_8X8
    APP> PARTITION_SPLIT
    START_PARTU_4X4
    ........
    START_PARTU_4X4
    ........
    START_PARTU_4X4
    ........
    START_PARTU_4X4
    ........
    APP> END_PARTU_8X8
    PARTU_16X4
    16X16
    4X16   
    APP> END_PARTU_8X8

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I want to print lines between pattern (these will be two consecutive lines thats why I am trying multi line regex) 

    APP> START_PARTU_8X8
    APP> PARTITION_SPLIT

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and 1st occurrence of 

   APP> END_PARTU_8X8

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Output:

    START_PARTU_4X4
    START_PARTU_4X4
    START_PARTU_4X4
    START_PARTU_4X4

[download]

Can anybody please help/suggest something ?

In reply to Print lines between multi-line regex pattern by Eshan_k

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