In the last paragraph of my column "How To Debug a PowerShell Script," I mentioned that punctuation can be problematic in PowerShell strings. I often catch myself omitting apostrophes, for example, ...

Explains how to add parameters to advanced functions. You can add parameters to the advanced functions that you write, and use parameter attributes and arguments to limit the parameter values that ...

Here's a breakdown of what it can do and how you can use it in conjunction with other custom functions. Starting in PowerShell V4, a new common parameter was introduced called PipelineVariable which ...