Christian Cal�nico wrote:
> If I'm reading from a file (suppose that it haves 1124 bytes) in this
> way:
>
> open IN, "data2.txt" or die $!;
> $/ = \512;
> while( my $block = <IN> )
> {
> ...
> }
>
> 1) Two iterations reads 1024 bytes. The third iteration is possible?
> How can I read the last 100 bytes?
Just keep reading. If the last block is shorter than 512, $block will just
be shorter. You'll get a third trip through the loop for that 100 byte
block. The next read after that will hit the EOF and the loop will exit.
> 2) Is there any way to change dinamically $/ ? (i.e., to read
> different number of bytes in each iteration)
You don't need to. It'll just work.
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