I can't say I've ever run across an if() statement used as such, I assume that it's doing a if ($. == 1) from 1 to 3 implicitly, but I'm unsure.

One thing I do know is that seek does not reset the line number variable $. when positioning back to the beginning of the file, so you have to set it explicitly:

use warnings;
use strict;

my $f = "/etc/fstab";
open ( my $fh, "<", $f );

while ( <$fh> ) {
    print "$.: $_";
}

print "=" x 78, "\n\n";
print "after 1st while loop\n";

seek( $fh, 0, 0);

# reset line num

$. = 0;

while ( <$fh> ) {
    print if (1..3);
}

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In reply to Re: seek question by stevieb
in thread seek question by natxo

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