There are a couple ways I can think of to do that, offhand. If it's a small file and you can read it all into memory, you can do something like this: 
my $file = '/path/to/file.txt';
open(IN,"<$file") || die $!;
read IN, my $html, -s $file;
close(IN);
$html =~ s/<!-- Begin -->(.*?)<!-- End -->/$1/s;

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Or, if the file is large and you'd like to read it line by line, you might want to try setting a flag when Begin is encountered, then turning it off again when End is hit. 
my $flag = 0;
while (<FILE>) {
    $flag = 1 if (/<!-- Begin -->/);
    $flag = 0 if (/<!-- End -->/);

    process_line($_) if ($flag);
}

[download]

In reply to Re: file reading issues by kwaping
in thread file reading issues by mojobozo

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