November 2017
Intermediate to advanced
904 pages
30h 53m
English
Content preview from Windows PowerShell in Action, Third Edition
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Chapter 6. PowerShell functions
This chapter covers
- Fundamentals of PowerShell functions
- Function parameters and return values
- Functions in the pipeline
- Variable scoping
Porcupine quills. We’ve always done it with porcupine quills.
Dilbert
In this chapter we’ll begin looking at how to create reusable commands by combining the features from the previous chapters. Functions and scripts are the two command types that can be written in the PowerShell language. (Cmdlets and external commands are written in a language such as C# that can be compiled.) We’ll start with functions because they’re simpler. In the next chapter, we’ll cover scripts as well as introduce advanced programming features available to both functions and scripts.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.