Learn PowerShell in a Month of Lunches, Fourth Edition

24 Handling errors

In this chapter, we’ll focus on how to capture, deal with, log, and otherwise handle errors the tool may encounter.

Note PowerShell.org offers a free e-book called The Big Book of PowerShell Error Handling, which dives into this topic from a more technical reference perspective, at https://devopscollective.org/ebooks/. We recommend checking it out once you’ve completed this tutorial-focused chapter.

Before we get started, there are two variables that we need to get comfortable with. The first is the $Error automation variable. This contains an array of error objects that have occurred in your current session, with the most recent error object showing up at $Error[0]. By default, all errors will be put into this variable. You ...