Best Practices

When writing portable scripts, one of the first challenges is locating files relative to the script itself. Whether in PowerShell or a classic Batch file, you need a reliable way to find your script’s “home” directory. This guide breaks down the two most important tools for this job: $PSScriptRoot for PowerShell and %~dp0 for Batch. 1. The Batch Method cd /d %~dp0 In Windows Batch scripting (.bat, .cmd), the magic variable %~dp0 is the standard for getting the script’s directory. It’s often used with cd to change the working directory. ...

What truly sets PowerShell apart from traditional command-line shells like Bash or Zsh is its foundational design: it’s built around objects, not text. While other shells pass streams of text between commands, PowerShell passes rich, structured objects. This fundamental difference is PowerShell’s superpower, making it an incredibly efficient and robust tool for automation, data processing, and system administration. This guide will explore what it means to work with objects and how you can leverage the object-oriented pipeline to write cleaner, more powerful, and more reliable scripts. ...

PowerShell has evolved significantly over the years, and with the release of PowerShell 7, it introduced several modern operators that make scripting more efficient, readable, and aligned with other popular programming languages like C# and JavaScript. This guide provides a deep dive into these new operators, showing you how they can simplify your code and make your scripts more robust. The key operators we’ll cover are: && and || — Pipeline chain operators ?? and ??= — Null-coalescing operators ?: — Ternary operator 1. Conditional Execution: The Pipeline Chain Operators (&& and ||) Introduced: PowerShell 7.0 ...