I assume it is a typo, but you are not using the $aref that you are passing to the sub, and instead working directly on $tpl.

s-t

sub sk{ return unless $in = shift;
        $in =~ s!(.)$!!; print $1; sk($in)}
sk("gro.alubaf@yehaf");

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In reply to Re: Removing recurring consecutive element by skillet-thief
in thread Removing recurring consecutive element by neversaint

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