Basic concepts of Perl programming language

The Perl programming language has existed since 1987, when the American programmer Larry Wall told the general public about his development. If you delve into the name, and the word “PERL” is formed by the abbreviation of the English phrase “Practical Extrfction and Report Language” (Russian. – “Practical sampling and reporting language” (note – literally)), you can understand that for writing applications.

In our case, Perl is a universal tool for creating various Web-scripts and interactive forms for a site that support almost all platforms. For beginners, I would like to briefly explain the meaning of the word “script” in web development.

Changes in the actions of a function, by logical comparisons of given variable values ​​for this function, are commonly referred to as scripts. In other words, the developer of the script assigns to it the circumstances under which this or that action on the Web page will change. The simplest example of using a script. When a user enters a password, the entered information is processed by the script, which in turn will change the user to continue the session or deny it.

Perl is the best tool for writing
CGI scripts to date . Due to its flexibility and simplicity (as opposed to JavaScript), it finds greater use, both among novice programmers and professionals.

Someone will say, why sit for hours and write a script when they are on the Internet at “every step” and of any type (which is only known). To a lesser extent they will be right. Writing a script from “zero” is a time consuming process, and scripts can be freely found, if not on computers (in the “Temporary Internet files” folder), then on different sites (in particular, on ours) and on any server (if on you have a website).

The question is not in this, because they need to be applied with specifically specified values. If you substitute them without having any idea about this (using the “spear” method), then you may be lucky not to completely destroy the script, but you will lose a lot of time.

Therefore, if you decide to become a full-fledged developer, then do not be lazy to learn the basics of Perl. Free reading and understanding of the scenarios will provide you with the opportunity to develop interactive websites (to make “engines” on them).

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