Category: Powershell

Jeff Hicks wants you to think fast:

Time to get back to the to blog. I’ve been working through my backlog of projects. These are things that I started writing or updating but then got pushed to the back of the line. One of these projects is a PowerShell module I wrote as a teaching tool. The idea was to create short quizzes on PowerShell topics that someone could take in a PowerShell session. My idea was to create quizzes on PowerShell topics, but you can create a quiz on anything. If you want to try things out, install the PSQuizMaster module from the PowerShell Gallery. The module will work in Windows PowerShell and PowerShell 7, including cross-platform.

Read on to see what’s in a quiz and how to create your own quiz.

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Patrick Gruenauer tidies up:

Big Data? Pain? Looking for empty folders and want to delete them? In this post I show you how to proceed to find and delete empty folders.

Open PowerShell, ISE or VS Code.

Caution: If you proceed, all empty folders will be deleted without any warning.

It is kind of funny to warn people that, if they run the script to delete all of these empty folders, they will delete all of these empty folders. But hey, better safe than sorry.

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Patrick Gruenauer does two things at once:

In this blog post, I’d like to give you a few examples related to PowerShell Background Jobs to build upon. Let’s jump in.

Let’s say I want to ping a few computers. This consumes time. So I want that this task runs in the background as a PowerShell background job.

Outside of practicing for a certification, I don’t remember the last time I willingly chose to run something as a background job, either in Powershell or bash. The concept is still useful (especially if I’m on an SSH connection or have direct terminal access), though in a UI-driven world, I’d just open a new terminal tab.

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Patrick Gruenauer checks download speed:

Short explanation: A file will be downloaded from my homepage. It’s a video about Powershell Profiles in German language. During the download of the file the process is measured with the Measure-Command cmdlet. At the end we get the final result and the time it took to download the file.

You can, of course, change the file location to whatever makes sense, but it’s nice to have something handy and not need to go to any websites for a speed test.

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Jose Manuel Jurado Diaz has a script for us:

We often encounter support cases where our customers leave the query execution timeout value at its default. In certain situations, we may find that when this value is reached, the application reports an error and does not continue. In this case, I would like to share an example implemented in PowerShell that allows incrementing the command timeout value up to 5 attempts, with a 5-second margin in each operation.

My recommendation here would be to use Polly instead, as it built in support for exponential backoff and more complex retry logic. Adam Driscoll has a Powershell wrapper called pspolly, which may also prove helpful.

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Gianluca Sartori takes us through the process of signing our own executables:

Why does happen with some files and doesn’t happen with the Chrome installer or Acrobat reader? Because those setup kits are signed with a certificate from Google and Adobe, released by a certification authority that checks that Google is actually Google and not a disgruntled random guy pretending to be Google.

This means you can sign your code too, you just need to get a code signing certificate from a certification authority and they will be happy to give you one in exchange for money.

Click through for the step-by-step demonstration and a Powershell script to perform the signing.

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