If you mean for example expand "abc $var xyz" so that the string $var is replaced by the value of $var then eval is the only way I know.

my $var = "123";
my $str = 'abc $var def';

my $temp = eval " \"$str;\" ";

print "str2:$temp\n";

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In reply to Re^2: Evaluating $1 construct in literal replacement expression by Anonymous Monk
in thread Evaluating $1 construct in literal replacement expression by arekfu

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