I have a huge file, there are 47,286,116 lines. I am search a line and repalce
this line with another string. I know this line is between 20,000,000th to
30,000,000th lines. Which way is more fast and safe:
method 1:
use Tie::FILE;
tie my @array, 'Tie""File', "aa.txt", memory =>100_000_000 or die;
for(my $i = 20000000; $i < 30000000; $i ++){
.......
}
untie @array;
method 2;
open(AA, "aa.txt");
while(<AA>){
...
}
close(AA);
Thanks
Org.
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