Here's what you know about Perl's operation and syntax so far:
Perl programs typically start with a "shebang" line
statements (generally) end in semicolons
statements may span multiple lines; it's only the semicolon that ends a statement
comments are indicated by a hash (#) sign. Anything after a hash sign on a line is a comment.
\n is used to indicate a new line
whitespace is ignored almost everywhere
command line arguments to Perl can be indicated on the shebang line
the -w command line argument turns on warnings