PERL Programming - Approach to Server-Side Scripting by ysmenalaa


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									PERL Programming - Approach to Server-Side

The first version of Perl (Perl 1.000) was published in 1987 by Larry Wall; so Perl is 4 years senior
to Linux. Larry Wall was at that time working with UNIX commands and was not happy by the
operation of sed, awk and the Bourne Shell. He was searching for a language that will provide
him all the supreme features of the UNIX commands and having very minimum margin of error.

In 1994 Perl 5.0 was published. This version was a replica of Perl Interpreter. In addition to that,
it had hard references and object concept. But the evolution of Perl is a continuous process and
the latest version is Perl 5.8.X.

Initially Perl was used for the server-side scripting in Web-Servers but now it is massively being
used in system administration tasks, manipulating databases and creating GUI applications etc.

Perl offers:
1. In depth access of strings and data structures.
2. Strong debugger attached with visual front-ends.
3. Execution in every platform.
4. Provision of namespaces, classes and objects.
5. Comparatively portable.
6. Extensive syntax and in-built functions.

Some Salient Features of Perl:

1. Both the structured-oriented and the object-oriented programming technologies are
supported by Perl.
2. Perl supports the third-party database inferences such as MySQL, Sybase, and Oracle etc.
3. It is an open-source language.
4. Perl is compatible with Y2K.
5. As it is an Open-Source language, it can be embedded into other system.
6. Perl is compiled with Over 500 third party utilities which increases its adaptability.
7. Perl is compatible with XML, HTML etc

Perl is compatible with following O.S.:
1. Unix systems
2. Macintosh - (OS 7-9 and X)
3. Windows
4. Linux
Perl and the world of web:
1. Text manipulation capabilities and rapid development cycle made Perl the most popular
language in the world of Web development.
2. It can work with the encrypted data which helps it to operate e-commerce transaction.
3. Perl energises the processing capacity of Web servers by 2000%.

Resemblance with Natural Language:
Natural languages are those which people use in their daily life, as a colloquial language. These
languages are rich, complete and allow the users to express their feelings more accurately and
briefly. The relevance between Perl and Natural language is that they go parallel. Larry Wall, the
creator of Perl was a linguist and used his linguistic knowledge to design Perl.

As every natural language becomes appreciable by the people of all skills and circumstances;
even a kid is allowed to express himself to others. Perl is something like that, as it can be written
in small code and also by the naive programmers. It is a very worthy language with several
features. It is recommended for the learner of Perl to keep the versatility of Perl in their mind.
As a slight change in the source code can result a big change in the runtime. As Perl is manual
handy, so it is also recommended to use the manuals of Perl to understand others' code.

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