Alternative to using regex which still handles multiple ".": 
$mon = '/accounts/person/code.42/file.MON.DOC';

my ( $d, $m, $y ) = (localtime)[3..5];
++$m;
$y+=1900;

substr($mon,rindex($mon,'.'),0)=".$y$m$d";

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In reply to Re: Creating Filenames using variables by Vystrax
in thread Creating Filenames using variables by rass

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