A script is called a series of commands that are stored within a text file and which are characterized by having a very small size, which, in addition, are usually executed in groups by means of a real- time interpreter. The use of scripts is very varied, as it is the case that some type of interaction with the operating system or with users is required, also to serve as a bridge, between the various combinations of components. In the computer world, scripts are widely used since thanks to them it is possible to program certain tasks to be executed automatically, only with the creation of very simple utilities.
This group of commands are commonly used to create automatic interactions with a computer's operating system. However, it is possible that it is also used when creating applications or programs that contain interpreted languages, slightly more complicated scripts are created, which in turn can carry out tasks such as data handling. In addition to this, in regard to the creation of websites, they are widely used, since thanks to them, it is possible that the appearance of said sites can be changed, as well as it is possible through them, to introduce into said website, special effects that are quite eye-catching for users. It should be noted that when talking about the use of script on web pages, these can be divided into two types.
In the first place, there are the client-side scripts, characterized in that their execution is carried out in the browsers that people usually use to be able to execute an application, this type is composed of VBScrip, JavaScript and Ajax codes are very used when it comes to DOM handling.
On the other hand, there are the server-side scripts, which are executed directly on the server, this type is characterized because no matter what browser is used, there are no problems with its operation. Server scripts have the ability to block access to certain web pages.
