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Perl Tutorial

Home Software Development Software Development Tutorials Perl Tutorial

Basics

What is Perl?

Perl Commands

How To Install Perl

Perl Versions

Perl Comments

Perl Variables

Perl Data Types

Perl Operators

Perl OR

Perl print hash

Perl compare strings

Perl pop

Perl glob

Perl STDIN

Control Statement

Perl if statements

Perl Switch

Goto in Perl

Perl next

Perl last

Perl for Loop

Perl while Loop

Advanced

Split in Perl

Perl tr

Perl concatenate string

Perl string length

Perl Class

Perl else if

Perl Array

Perl array length

Perl array size

Perl push array

Perl Grep

Perl chop()

Perl chomp()

Perl sort()

Perl Hash

Perl join

Perl eval

Perl basename

Perl readdir

Perl Unshift

Perl JSON

Perl not equal

Perl unlink

Perl replace

Perl use strict

Perl list

Perl mkdir

Perl bless

Perl open

Perl GetOptions

Perl substr

Perl XML Parser

Perl unpack

Perl Regular Expression

Perl Subroutine

Perl one liner

File Handling in Perl

Perl open file

Perl Read File

Perl Write to File

Perl file exists

Perl copy file

Perl File Extension

Perl exists

Perl exit

Perl function

Perl die

Perl eq

Perl opendir

Perl undef

Perl sleep

Perl join array

Perl multiline comment

Perl array of hashes

Perl block comment

Perl time

Perl localtime

Perl foreach

Perl qw

Perl push

Perl datetime

Perl map

Perl index

Perl print

Perl printf

Perl shift

Perl boolean

Perl pop array

Perl Data Dumper

Perl trim

Perl unless

Perl RegEx tester

Perl Tutorial

The programming language developed by Larry Wall for text processing is Perl. Practical Extraction and Report Language describes Perl. Windows, Mac, OS, and UNIX platforms support Perl. Procedural and object-oriented programming is supported in Perl. The interpreter is used with different systems so that Perl works well with all the systems. Perl is used for system administration, web development, network programming, and GUI development. An interpreter is not needed for Perl as there is no compilation stage.  Perl is considered an in-between language of C and Python. Concepts and syntax are taken from different languages and integrate well with others.

Why do we need to learn Perl?

  • Perl is a stable language that is used to perform on many platforms, so Perl is called as cross-platform language. There is a sequence of declarations and statements in the language.
  • Many critical projects in public and private sectors are done using Perl as it is used in text processing. Also, it is open-source software.
  • Many features from different languages such as C, Basic, awk, sed, and sh are taken into and used in Perl so that it integrates and uses different properties. HTML, XML, and many other markup languages integrate with Perl. Also, it supports Unicode.

Applications of Perl

  • Perl is used in text manipulation and in different rapid development cycles, so it is one of the most popular web programming languages.
  • The language is embedded into different web servers so that the processing speed can be increased to the maximum.
  • Encrypted web data can be handled easily so that different transactions can be embedded in the Perl language. Apache web server is also easily embedded.
  • Database integration can be done easily due to the Perl DBI package. Also, it is called as the duct tape of the internet.

Example

This is used to send a mail with the subject and body as Hai. From and To attributes are also defined in the example below:

#!/usr/bin/perl
use strict;
use warnings;
use Email::MIME;
my $message = Email::MIME->create(
header_str => [
From    => '[email protected]',
To      => '[email protected]',
Subject => 'Hai!',
],
attributes => {
encoding => 'quoted-printable',
charset  => 'ISO-7869-1',
},
body_str => "Hai!\n",
);
use Email::Sender::Simple qw(send mail);
send mail($message);

Pre-requisites

  • Knowledge of C programming, text editors, and UNIX shell is important to learn Perl language as it helps to do the text manipulation easily.
  • Algorithm should be known to the programmer so that he/she can think in the form of algorithms that helps in describing the language.
  • Different variable names, looping constructs, dynamic typing, and regular expressions should be known as the standard input or output for the users of Perl.

Target Audience

Web developers use Perl for website management as it is easy to use and has many text editors for text manipulation. Developers who are familiar with shell scripting can start learning Perl as their milestone towards learning programming languages. Also, it is used for the administration of different systems with many platforms.

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