How to count no of occurrence of a unique patterns in perl?

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Write syntax to use grep function?

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What is “grep” function in perl?

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Explain ivalue in perl?

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Explain the functioning of conditional structures in perl.

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For a situation in programming, how can you determine that Perl is a suitable?

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explain the various functions/directives in perl that allow you to include/import a module. Also, state the differences between them.

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what r the future opportunities in PERL/LINUX after 3 years ??

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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,

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You want to add two arrays together. How would you do that?

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What are the advantages of perl programming?

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What arguments do you frequently use for the Perl interpreter and what do they mean?

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