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my($first, $second, $third) = $text =~ /(\([a-z]*\))(?:\s|_|$)/gi;
print "$first and $second and $third\n";

no warnings 'uninitialized';
my $count = $text =~ s/(\([a-z]*\))(?:\s|_|$)/$1$2/gi;
print $count;
use warnings;

(network) and (test) and (ifcfg)
3