Wsh V Perl

Wsh V Perl

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WSH v Perl
Windows Script Host (WSH) and Practical Extraction and Report Language (Perl) are two types of programming language used for script writing. (Perl, 2006)
The Windows Scripting Host is a tool that provides access to objects in the Windows operating system, such as files, folders, and network items, to two built-in scripting engines. These scripting engines are for the VBScript and JScript scripting languages, which are derivatives of the full-blown Visual Basic and Java programming languages. Because VBScript and JScript are scripting languages, the programs that you can develop with them are much simpler and smaller than those that you'd develop with the full-blown programming languages. Furthermore, the scripting languages aren't as robust as the full-blown programming languages. (Schultz, 2000)
WSH is language-independent in the sense that it can make use of different Active Scripting language engines. (Windows Script Host, 2006) And although WSH enables you to run programs written in these languages, it is not a language itself. Basically, WSH is a host for users to write and execute scripts, written in a multitude of languages, in a stable environment. Another scripting host that most are familiar with is Microsoft¡¦s Internet Explorer. IE enables scripts that use the HTML object model to be displayed in a user friendly way.
An unusual aspect of WSH is that it was developed to be a general-purpose. This means that when using WSH the user has no restrictions on programming language. Windows Script Host¡¦s abilities can be divided into the following categories:
„« The ability to intrinsically carry out system administration tasks.
„« The ability to use COM objects to carry out system administration tasks.
„« The ability to add standard programming features to WSH-compatible scripting languages.
„« The ability to run command-line tools.
(Microsoft TechNet, 2006)
Windows Script Host comes with Windows, meaning that most computers already have the capability to start script writing straight out of the box. However, due to the smaller memory footprint, WSH should only be used to perform quick and easy tasks. Running your scripts via WSH is incredibly easy; because it is built in with most operating systems, the user simply double-clicks the script icon and the scripts run. WSH can be run in two separate modes within Windows. The first of these modes is the protected-mode Windows-based host, or Wscript. By running scripts in Wscript, results will appear as ¡§pop-ups¡¨ on the desktop. The other mode, real-mode command shell-based host (Cscript), allows the user to run scripts from the command line interface.

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This allows a script to run with no visible signs of an operation taking place. (Rubenking, 2000)
Perl is a high-level programming language with an eclectic heritage written by Larry Wall and a cast of thousands. It derives from the ubiquitous C programming language and to a lesser extent from sed, awk, the Unix shell, and at least a dozen other tools and languages. Perl's process, file, and text manipulation facilities make it particularly well-suited for tasks involving quick prototyping, system utilities, software tools, system management tasks, database access, graphical programming, networking, and world wide web programming. These strengths make it especially popular with system administrators and CGI script authors, but mathematicians, geneticists, journalists, and even managers also use Perl. Maybe you should, too. (Deskware, 2005)
Perl, unlike WSH, is a script language. Perl is usually found on the web in the form of bulletin boards, chat rooms, forums, and a wide variety of online applications. In order to use Perl the user must purchase software not included with any operating system. Its major uses include the creation of the following online resources:
„« system utilities
„« software tools
„« system management tasks
„« database access
„« graphical programming
„« networking
„« world wide web programming
(Internet Guide, 2002)
Perl has a number of pros and cons. It can be very difficult to learn unless you have prior experience with programming languages. Yet, on the other hand, it is far more powerful than WSH by allowing the user to complete tasks that are impossible to do with WSH alone. Perl is also better at text manipulation and can be used on multiple platforms. Also, you can accomplish tasks in a variety of different ways, which can backfire when you are troubleshooting another person¡¦s code. Perl is also not monitored by any single company, thus there is no official place to go for technical support. The major disadvantage to Perl is that the syntax is cryptic. (Borchert, 2002)

References

Borchert, A. (May 2, 2002). Advantages of Perl. Retrieved February 26, 2006, from http://www.cs.rit.edu/~afb/20013/plc/ slides/perlintro-04.html
Deskware Inc. (2005). Web Programming Tutorial Part 1 - Comparing Perl, ASP, Java Servlets, and CobolScript. Retrieved February 26, 2006, from http://www.cobolscript.com/ tut1.htm
Internet Guide. (2002). What is Perl. Retrieved March 5, 2006, from http://www.internet-guide.co.uk/perl.html
Microsft TechNet. (2006). WSH Overview. Retrieved March 5, 2006, from http://www.microsoft.com/technet/scriptcenter/guide/ sas_wsh_qlcc.mspx
Perl. (February 22, 2006). Retrieved February 26, 2006, from http://en.wikipedia.org/wiki/Perl
Rubenking, Neil. (May 9, 2000) Windows Scripting Host. PC
Magazine.
Schultz, G. (April 2000). Taking Advantage of the Windows Scripting Host. Retrieved February 26, 2006, from http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwinpro00/html/WindowsScriptingHost.asp
Windows Script Host. (February 12, 2006). Retrieved February 26, 2006, from
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