Hi monks, this is my first post. 
# Global mode (pretty slow on large files)
$_=q qrea ncJertsa ,thelhPkour q,my $i=length;
while($i){s/(.{$i})(.)/$2$1/g;--$i}print+$_.$/

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# Non-global
$_=q qnPteorJlt  hhascekaerru, q,my $i=length;
while($i){s/(.{$i})(.)/$2$1/;--$i}print+$_.$/;

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# Opposite code:
$_=q qJust another Perl hacker,q;until($i eq
length){s/(.)(.{$i})/$2$1/g;++$i}print+$_.$/

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It's very simple and easy to understand. Note: for files should be added '/s'

In reply to Length obfuscation by trizen

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