How to match a newline \n in a perl regex?

Question

I want to match this line,

\'\'\'No Change Alarms Help & Information         


        

Answer 1

$string_given =~ s/matching expression/sustitution/s;

i think this will work,using the /s modifier, which mnemonically means to "treat string as a single line". This changes the behaviour of "." to match newline characters as well.

In order to match the beginning of this comment to the end, we add the /s modifier like this:

$str =~ s///s;

Without the /s, it wouldn't match at all.