Regular Expression Using Perl

Regular Expression Using Perl : Perl is the language that is the most famous for its use of regular expression for good reasons.

We use the =~ operator to denote a match or an assignment depending upon the context. The use of !~ is to reverse the sense of the match.

There are basically two regex operators in perl:

Matching: m//

Substitution: s///

The purpose of the // is to enclose the regex.…