Learn PowerShell Scripting in a Month of Lunches, Second Edition

15 Errors and how to deal with them

You have much functionality yet to write in the tool you’ve been building, and we’ve been deferring a lot of it to this point. In this chapter, we’ll focus on capturing, dealing with, logging, and otherwise handling errors the tool may encounter.

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

15.1 Understanding errors and exceptions

PowerShell defines two broad types of bad situations: errors and exceptions. Because most PowerShell commands are designed to deal with multiple things ...