Ok, I hit a snag. I am working on sorting a big 4.42 GB (4,757,131,264 bytes) 13961993 line file. When the sorted file gets written, it's always smaller than the original file. This only happens on these huge files. My thinking is that the offset is creating a number larger than what pack N can deal with.

push @index, pack 'NN', $epoch, $offset;
Can someone confirm this and/or let me know if there is another way? Thanks

<edit> Ok, I just figured out that my guess was correct.

#!/usr/bin/perl -w
use strict;

my $num = 4757131264;

print "NUM: ".$num."\n";
my $pnum = pack 'N', $num;
print "NUM: ".unpack( 'N',$pnum)."\n";

[download]
How else can I pack the data and maintain the fast sort? My system does not support 64-bit
</edit>

In reply to Re^9: Sort big text file - byte offset by msalerno
in thread Sort big text file - byte offset - 50% there by msalerno

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