What does file test operators do in perl?

992

what is the function that is used to identify how many characters are there in a string?

1011

what are the two ways to get private values inside a subroutine or block?

990

How to read a file into a hash array?

1095

package MYCALC; use Exporter; our @EXPORT = (); our @ISA = qw(Exporter); our @EXPORT_OK = qw(addition multi); our %EXPORT_TAGS = (DEFAULT => [qw(&addition)],Both => [qw(&addition & +multi)]); sub addition { return $_[0] + $_[1]; } sub multi { return $_[0] * $_[1]; } 1; Program: use strict; use warnings; my @list = qw (2 2); use Module qw(:DEFAULT); print addition(@list),"\n"; Above coding is my module MYCALC and the program which using this module, I have not exported any function using @EXPORT, but I have used the DEFAULT in %EXPORT_TAGS with the function addition, when I call this function from the main it says the error as,

2736

Write a cgi program to show the header part?

1045

How do I do fill_in_the_blank for each file in a directory?

1010

Where the command line arguments are stored and if you want to read command-line arguments with Perl, how would you do that?

1155

How will you access an element of a perl array?

991

What is “grep” function in perl?

1073

What is stdin in perl?

1012

What is the function of cgiwrap in cgi programming?

982

Can inheritance be used in perl? Explain with the help of an example.

1055

What is the importance of perl warnings?

1233

When do you use perl programming?

1039