What still seems to be getting missed is that despite some superficial similarities, Unix pipelines and PowerShell pipelines serve different purposes, operate o

What still seems to be getting missed is that despite some superficial similarities, Unix pipelines and PowerShell pipelines serve different purposes, operate on different levels, function totally differently, and are not interchangeable within the system. Unix pipelines are an operating system feature that coordinates data streams between processes. PowerShell's object pipeline is function chaining feature of PowerShell, a runtime that runs on an operating system as a process, the kind of process whose communication with other processes is coordinated on Unix systems using Unix pipelines. Python, PowerShell, and Ruby object handling and function/method chaining are not a features at the operating system level, they are features within the Python, PowerShell, and Ruby runtimes and processes. Unix pipelines are a feature at the operating system level that coordinate communication between these kinds of processes. Unix pipelines are not a feature of Unix shells, they are an operating system feature for which shells provide an interface. PowerShell's object pipelines are features of PowerShell and its runtime, not the host operating system. This is not a minor distinction. A feature for working with objects and chained functions within particular language or framework's runtime is not the same thing as a feature for coordinating process communication in an operating system.