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PowerShell is a task automation and configuration management program from Microsoft, consisting of a command-line shell and the associated scripting language.Initially a Windows component only, known as Windows PowerShell, it was made open-source and cross-platform on August 18, 2016, with the introduction of PowerShell Core. [9]
Microsoft Foundation Class Library (MFC) Active Template Library (ATL) Framework Class Library (FCL) Object Windows Library (OWL) Standard Template Library (STL) Visual Component Library (VCL) Windows Template Library (WTL) Windows UI Library (WinUI) Text Object Model (TOM)
case class name(«var» name: type, ...) (val 1, val 2, val 3, ...) abstract class name case class Foo(«parameters») extends name case class Bar(«parameters») extends name ... or abstract class name case object Foo extends name case object Bar extends name ... or a combination of case classes and case objects Windows PowerShell: OCaml
When the COM class factory tries to instantiate a class, the activation context is first checked to see if an implementation for the CLSID can be found. Only if the lookup fails, the registry is scanned. [16] A COM object can be created without type library information; with only a path to the DLL file and CLSID.
Some programming languages—such as Ada and Windows PowerShell—allow subroutines to have named parameters. This allows the calling code to be more self-documenting. It also provides more flexibility to the caller, often allowing the order of the arguments to be changed, or for arguments to be omitted as needed. PowerShell example:
In this context, the term script refers to a small program in such a language; typically, contained in a single file, and no larger than a few thousand lines of code. The scope of scripting languages ranges from small to large, and from highly domain-specific language to general-purpose programming languages. A language may start as small and ...
Example usage of tee: The output of ls -l is redirected to tee which copies them to the file file.txt and to the pager less. The name tee comes from this scheme - it looks like the capital letter T. The tee command is normally used to split the output of a program so that it can be both displayed and saved in a file. The command can be used to ...
this, self, and Me are keywords used in some computer programming languages to refer to the object, class, or other entity which the currently running code is a part of. The entity referred to thus depends on the execution context (such as which object has its method called). Different programming languages use these keywords in slightly ...