Match regex and assign results in single line of code

Question

I want to be able to do a regex match on a variable and assign the results to the variable itself. What is the best way to do it?

I want to essentially combine lines 2 a

Answer 1

You can do substitution as:

$a = 'stackoverflow';
$a =~ s/(\w+)overflow/$1/;

$a is now "stack"