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.
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$_ is an alias for automatic variable $PSItem (introduced in PowerShell V3.0; Usage information found here) which represents the current item from the pipe. PowerShell (v6.0) online documentation for automatic variables is here.
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The central repository for sharing and acquiring PowerShell code including PowerShell modules, scripts, and DSC resources.
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Learn about installing PowerShell on Windows, Linux, and macOS.
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There are multiple ways to install PowerShell in Windows. Each install method is designed to support different scenarios and workflows. Choose the method that best suits your needs. Winget - Recommended way to install PowerShell on Windows clients.
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Official product documentation for PowerShell. Get Started. Overview. Download. Setup and installation. How-To Guide. Sample scripts. Deploy. PowerShell Gallery.
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PowerShell is a cross-platform task automation solution made up of a command-line shell, a scripting language, and a configuration management framework. PowerShell runs on Windows, Linux, and macOS.
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In PowerShell, the closest thing you can do is: (build) -and (run_tests) It has the same logic, but the output text from the commands is lost. Maybe it is good enough for you, though. If you're doing this in a script, you will probably be better off separating the statements, like this: build.
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