Which of the following operators are NOT used in Perl?

Which value is returned by the Perl eof function if the next read on FILEHANDLE returns the end of file or if the FILEHANDLE is not open?

Which is the correct syntax of a subroutine that makes a positional parameter, say 'right', optional? (Assume the name of the subroutine as example, and left and right as the positional parameters.)

Output of the Perl program? use strict; my @x = ('Red', 'Blue', 'Black'); print `@x = ` . '@x\n'; my ($Mary, $Lisa, $Lara)= @x; print '$Mary $Lisa $Lara\n'; my ($here, $there)= @x; print '$here $there\n'; my ($this) = @x; print '$this\n'; my $this = @x; print '$this\n'; my ($a, $b, $c, $d, $e)= ('a', 'b', 'c', 'd', 'e'); print '[$a] [$b] [$c] [$d] [$e]\n'; ($a, $b, $c, $d, $e)= @x; print '[$a] [$b] [$c] [$d] [$e]\n'; my $var_a = 'Monday'; my $var_b = 'Friday'; ($var_a, $var_b)= ($var_b, $var_a); print '$var_a $var_b\n';

Which Perl command will print the output, 175?

Which statement is/are correct about Perl Pod processors? i) All three well-known newline formats: CR, LF, and CRL must be recognized by the Pod parsers. ii) Input lines of any length must be accepted by the Pod parsers.

What's the preferable mode of executing one CGI script?

How can you install a module?

Perl has a 'goto' command.

Perl programs have this filehandle that is automatically opened:

What does cdup () do in FTP?