In Perl, what is grep function used for?


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More CGI Perl Interview Questions

What do you mean by context of a subroutine?

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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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What is grep used for in perl?

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What is a chop() function in perl?

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Why should I use the -w argument with my Perl programs?

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write a script to generate n prime no.s?

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How to close a file in perl?

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What can be done for efficient parameter passing in perl? Explain.

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How we can navigate the xml documents?

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

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What does the qx{ } operator do?

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what is Perl one liner?

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