Computer Programming

Perl is a popular server scripting language that you can use to enhance websites, create database functionality, create a variety of interactive forms and provide other enhancements to an online...

Perl is a cross-platform scripting language for just about everything imaginable. Many professional developers use perl to take advantage of the pre-built modules or to write custom modules that...

Would you like to learn computer programming? Do you already know basic programming and would like to advance your skills to create useful software? If you answered yes to either of these...

Perl is a powerful scripting language that is available on nearly every operating system including Linux, UNIX, and Windows. There are several distributions, or ports, of perl available for...

The following is a strategy guide to performing mathematical calculations using the Perl programming language. Included is a list of numerical operators, a guide to performing basic mathematical...

There are several ways to install Perl modules, i.e. downloading the zip file, via a module interface etc. However, the quickest and most efficient way is to install from the CPAN prompt right in...

Perl modules are sometimes difficult to install as the specifications for each operating system are distinct. One of the easiest secure ways to install a module is to do it manually, i.e....

Connecting to the MySQL database from a Perl script requires the Perl DBI and DBD:MySQL modules. These modules can be obtained from CPAN (Comprehensive Perl Archive Network). If you are using...

CGI (Common Gateway Interface) scripts are used in conjunction with HTML to create dynamic web pages. CGI scripts can be written in any programming or scripting language, but the most common...

Programming languages use arrays to store a list of data. An example of array is (1 2 6 17 6 2 95 1 2 6) that has elements "2", "6" and "1" duplicated. Perl, a freely accessible programming...

Virtually all programming languages use an array structure to store a list of data. For example, "array(76, 3, 5)." The reversed array would contain the same data but backwards i.e. "new_array(5,...

Perl is a command line and server side scripting language created by Larry Wall to process reports more efficiently. The language makes heavy use of regular expressions to process text files and...

Developing passwords for a large number of users is a less daunting task if a random password generator is utilized. Passwords can include alphanumerical characters, as well as symbols, and be as...

I have to admit I am a convert form Perl to PHP. For many years I thought Perl was better, but then I started using PHP more and more when I began developing more advanced websites. I won't go...

To convert a flat file to XML it is necessary for the structure of the file to include data separated by specific delimiters. Since flat files normally serve as storage bins for logically...

Perl is a programming script language that was initially developed for the UNIX environment. Virtually all UNIX operating systems contain Perl as a standard component, while Windows does not...

Perl and many other programming languages use arrays to store a list of data. However, Perl also supports a specific data structure called a hash. A Perl hash associates a particular value with a...

Perl scripts are very common in the programming world, especially for programs that must manage large amounts of text, such as indexers. Perl scripts can be very easy or very difficult depending...

Depending on the nature of the PERL program it may be necessary to delete files on disk. For example, if a blank file is created at the beginning of a program and is then written to, it may have...

Larry Wall developed Perl, short for practical extraction and reporting language, in 1987 for text processing. Now Perl is one of the most widely-used programming languages and helps many...

Perl 5 added the ability to manage complicated data in Perl. References essentially point to another data set without having to write out the entire data set each time you need it. There are ways...

You'll probably want to utilize the web's common gateway interface, or CGI, to make the process go as smoothly as possible if you're looking to write your own scripts for the WWW. One of the...

The Apache web server is designed with a tremendous amount of flexibility. One of its greatest capabilities allows users to write their own Apache Modules. Internally, Apache is built upon...

Writing portable Perl code has plenty of advantages. One main advantage is that you can write it once and run it on any platform. Therefore, the need to port the code to a new operating system is...

Whenever you are writing a large computer program, connecting to a relational database is a necessity. You can take advantage of Perl's predefined modules for connecting to a relational database...

Perl—Practical Extraction and Reporting Language—is a scripting language used when programming with Unix. It's often used in CGI web scripts and is helpful for processing text. It's quick and easy...

As a portable, simple and versatile language, PERL has become popular for working on web-based scripts and programs. Originally developed for UNIX, PERL has a straightforward structure and a...

Use Perl to create simple reports. Include a header with a title, page number and other important information. Perl tracks how many lines are in the report and makes a new page when needed. These...

In the Perl language, used today for web-based programming, you can see a lot of minimal syntax. The way Perl deals with variables seem very basic, and to some, it is excessive. Some say Perl...

Perl is a magnificent tool for an Internet programmer, ranking up there with PHP and DHTML. Its text manipulation assets make it ideal for many web applications, and it has expanded to become a...

The PERL programming language uses a few fundamental data types. This range of data types includes variables and other designations for routines and file maps. The data types in PERL are...

Ruby is a programming language. Ruby borrows from several other programming languages, such as Java and Perl, and makes the coding easier. Ruby was designed to make programmers happy and after...

Perl is a popular computer programming language used for a variety of applications--including system administration and CGI programming on the Web. One reason for its popularity is that it adapts...

Writing forms in html is an essential skill for any web content developer. Html forms allow users to enter and submit information. Html forms collect user's input either via email or add the...

Perl has an immense collection of user-created modules known as the "Comprehensive Perl Archive Network," or CPAN for short. These modules are added to your Perl environment with the CPAN command....

No computer program ever works as intended on the first try. Programmers make mistakes, which can range from typos, to mistakes made because the programmer didn't understand something, to...

Profiling programs is an important first step in optimization. If you want your program to run faster, you first have to identify which functions are taking the most time and focus your attention...

Perl is designed for reading and manipulating text data. It's easy to manipulate its three basic data structures (the scalar, the list and the hash) because the Perl interpreter can type it based...

Perl was built for text manipulation, but it also has external libraries for manipulating raster images. A popular library from which you can manipulate images is called "gd." Since GD is not...

Running Perl on a laptop is as easy as downloading and installing a Perl distribution. On Windows or Mac, ActiveState's ActivePerl distribution is the easiest to use, in addition to being the...

One of Perl's mottos is TIMTOWTDI (pronounced "tim toady"). It's an acronym that stands for "there is more than one way to do it." Just like everything else in Perl, there are many ways to capture...

The convenience of embedding scripting code in HTML documents for web development is undeniable. Having a powerful language like Perl working just like PHP is a very good combination. Embedding...

Perl comes with a File::Find module that allows a user to search for a file. The File::Find::find function descends into subdirectories and visits each file once, passing it to a function you...