Tag Archives: pipeline

The PowerShell Pipeline, explained

So, my previous post on PowerShell has prompted some responses, internally and externally. Sufficient that I did actually re-word some parts of it, and sufficient that I feel a need to be positive and offer something to take away the burn.

So let’s have a go at explaining the pipeline, shall we?

To do this, I’m going to give an example of doing something without the pipeline. I hope that by the end of this post, the value of showing the other way first will be clear. But I’ll say up front, if you have written code like I’m about to show, don’t fret. It still works. There’s just a better way.

The example I’ve chosen is this:

You’re deploying an IIS Web Application using PowerShell, and as part of your deployment process, you want to delete the previous web site(s) from IIS.

So, let’s dig in. I’m going to be quite thorough, and it’s fine to follow along in the PowerShell prompt. You will, of course, need IIS installed if you do, but don’t worry, at the end there’s an example or two that should work for everyone.

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