Intermediate
For those who have mastered the basics and are ready to level up.
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Understanding PowerShell scopes is crucial for effective script management and avoiding common errors. Scopes in PowerShell define the visibility and lifetime of variables and functions, ensuring that they are accessible only where intended. This blog post delves into the different types of scopes — global, local, script and private — explaining their uses and how to manage them. You’ll learn how to define and access variables across scopes, understand scope precedence, and avoid common pitfalls.…
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Unlock the full potential of PowerShell with advanced function techniques. This post covers strategies to enhance performance and flexibility, including advanced parameters, robust error handling, and pipeline input. Learn best practices for writing reusable, modular code to keep your functions efficient and scalable. Perfect for both seasoned users and beginners, these tips will elevate your scripting skills.
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Dive into the world of PowerShell with this guide on creating functions. Learn the basics, from defining functions to using parameters effectively. We’ll also cover best practices to ensure your scripts are clean, efficient, and easy to maintain. Perfect for beginners, this post will set you on the path to mastering PowerShell functions.
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When using PowerShell’s Invoke-Command, the -ArgumentList parameter is your best buddy for passing arguments to remote commands. This post dives into how it works, when to use it, and some common pitfalls—sprinkled with wisdom from the trenches and community chatter.
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Enhance your PowerShell scripts with robust parameter validation. This article explores various validation attributes and techniques to ensure input data meets specific criteria before execution. Learn about required parameters, value ranges, pattern matching, and custom validation to make your scripts more reliable.
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If you’ve ever found yourself overwhelmed by the sheer number of parameters in your PowerShell commands, splatting might just be the solution you need. Splatting is a powerful feature in PowerShell that allows you to bundle parameters into a single variable, making your scripts cleaner and more readable.
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Running a function inside a remote session or ForEach-Object -Parallel can be tricky because the function isn’t available on those computers or sessions. While copying the function’s contents into the scriptblock is an option, it requires revisiting the script whenever the function changes—not the best approach.
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The tale of the missing property and Register-PSRepository.
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Ever had a script which contains an array and a foreach loop? And then you want to test the content of the foreach, but only with one entry for troubleshooting purposes for example.
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In a previous blog I wrote about PowerShell’s common parameters, today I dive into another aspect of parameters in functions, namely Parameter Sets. Parameter sets allow you to define different sets of parameters for a single function, this helps creating clearer and more intuitive functions. What Are PowerShell Parameter Sets? Parameter sets allow you to define different parameter groupings for a function or cmdlet. These groupings, or “sets,” mean that certain parameters can only be…