What does @ARGV refer to?

A directory handle.

The keyword 'my' is used to declare

The syntax of the sort function without a special purpose sort subroutine is:

Which is a part of the if family of branching statements in Perl?

What does the ord string function do?

What is the following code output? (check all that apply)foreach my $operator ( qw(+ − * /) ) {    my $result = eval '2 $operator 2'; 

   print '2 $operator 2 is $result\n';

How do I replace every TAB character in a file with a comma?

The '%' operator returns?

Which is Basic Input and Output Functions in Perl?

What does PrintRet do?