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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]
In PowerShell, all types of commands (cmdlets, functions, script files) inherently expose data about the names, types and valid value ranges/lists for each argument. This metadata is used by PowerShell to automatically support argument name and value completion for built-in commands/functions, user-defined commands/functions as well as for ...
Filename extension Explicit processor declarations Arbitrary sections Metadata [a] Digital signature String table Symbol table 64-bit Fat binaries Can contain icon; ELF: Unix-like, OpenVMS, BeOS from R4 onwards, Haiku, SerenityOS: none Yes by file Yes Yes Extension [1] Yes Yes [2] Yes Extension [3] Extension [4] PE: Windows, ReactOS, HX DOS ...
Under OS/2 and Windows NT, the .CMD file extension is associated with batch scripts for their command processor CMD.EXE.Since binary code will not be executed this way, attempting to run CP/M-86 CMD files under the CMD command processor will not work, but typically only cause mild inconvenience to users.
In Windows Shell programming, the Windows Shell namespace is an organized tree-structured hierarchical representation that Windows Explorer facilitates to graphically present file system contents and other objects to the end user. Conceptually, the Shell namespace may be regarded as a larger and more inclusive version of the file system.
"foo" is not recognized as an internal or external command, operable program or batch file. Some early Unix shells produced the equally cryptic " foo: no such file or directory " again accurately describing what is wrong but confusing users.
Windows PowerShell, a command processor based on .NET Framework. PowerShell, a command processor based on .NET; Hamilton C shell, a clone of the Unix C shell by Hamilton Laboratories; Take Command Console (4NT), a clone of CMD.EXE with added features by JP Software; Take Command, a newer incarnation of 4NT
P/Invoke is useful for using standard (unmanaged) C or C++ DLLs. It can be used when a programmer needs to have access to the extensive Windows API, as many functions provided by the Windows libraries lack available wrappers. When a Win32 API is not exposed by the .NET Framework the wrapper to this API must be written manually.