Comments are plain text that allow you to insert documentation in your Perl script.

   

Perl does not understand the C language comments /* and */ or C++ comments //.

# This is a comment
print "hello";  # And this is a comment

1.	A simple Perl program with comments.
2.	Any line starting with a number sign (#) indicates a comment.
3.	Commenting Your Code
4.	Insert comments
5.	Place a # in the middle of a line, and Everything from the # to the end of the line is a comment.

Comments are plain text that allow you to insert documentation in your Perl script. : Comments « Language Basics « Perl