XY problem question here...
What are you going to be using those arrays for? Are they huge, or is the sample/good a small subset of the input data? There may be better ways to approach the entire task.
Perhaps consider something more like this:
open my $ifh, '<', 'test.pl' or die;
open my $ofh_samples, '>', 'samples.txt' or die;
open my $ofh_good, '>', 'goodlines.txt' or die;
my $total = -s 'test.pl';
my $progress = 0;
my $linecount = 0;
while (my $line = <$ifh>)
$progress += length ($line);
print $ofh_samples $1 if $line =~ /^sample\s+(\S+)/;
print $ofh_good $1 if $line =~ /^good\s+(\S+)/;
printf "Processing... %3.1f%% completed... \r", 100*$progress/$tot
+al unless $linecount %100;
That will keep little more than one line in memory at a time, and you can then deal with the pieces separately. Uncomment the comments to give a progress display.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||