For this problem, I would consider the use of Tie::File with some code similar to the following:

use Tie::File;

tie my @array, 'Tie::File', 'test.data' or die $!;

for my $index (0 .. $#array) {

    unshift @array, splice(@array, $index, 1) if $array[$index] =~ /33
+3/;
}
untie @array;

[download]

 

perl -le "print+unpack'N',pack'B32','00000000000000000000001010100010'"

In reply to Re: Swapping a record in a File by rob_au
in thread Swaping a record in a File by ganeshm69

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