PowerShell is a cross-platform (Windows, Linux, and macOS) automation and configuration tool/framework that works well with your existing tools and is optimized for dealing with structured data (e.g. JSON, CSV, XML, etc.), REST APIs, and object models.
PowerShell 7 installs to a new directory and runs side-by-side with Windows PowerShell 5.1. Newer versions of PowerShell 7 replace existing previous versions of PowerShell 7.