PowerShell definition & meaning
PowerShell is a cross-platform open-source command-line shell, also considered as a framework, and a scripting language developed by Microsoft. The main purpose behind development of PowerShell is, helping tech professionals to build efficient scripts and tools to help them do their job better. PowerShell is object-oriented and built on top of Microsoft .NET technology.
PowerShell is two things; it’s a command-line shell, which allows users to run commands via a command-line. It is also a robust scripting language, which can build tools and automate processes instead of doing them manually. PowerShell offers many commands called cmdlets and functions.
In PowerShell, most of the administrative tasks are processed by cmdlets (command lets) that are specialized .NET classes implementing a particular operation by accessing data stores like file system or registry. Third party developers may also add new cmdlets and providers to PowerShell. Cmdlets may be used by scripts. In turn, these scripts may be packaged into modules.