You can execute your substitution on the default string $_. 
use strict;
use warnings;
my $string = '(abc),(def),(ghi)';
my $substitution = 's/\),\(/\)\n\(/gi'; 
$_ = $string;
eval "$substitution";
print;

[download]

OUTPUT: 

(abc)
(def)
(ghi)

[download]
Bill

In reply to Re: Regex stored in a scalar by BillKSmith
in thread Regex stored in a scalar by OtakuGenX

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