February 2019
Intermediate to advanced
626 pages
15h 51m
English
Content preview from Mastering Windows PowerShell Scripting - Third Edition
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Scripts, Functions, and Filters
Functions can be described as building blocks in PowerShell. Functions are used to break up code into manageable sections. A function should strive to be good at one job. Functions are often used to build scripts; the script uses functions as a means of concisely describing the steps it is taking. Functions are often grouped together in modules. The functions within a module often share a common purpose or act on a single system. A filter is a specialized function, and are briefly explored in this chapter as they have been part of PowerShell since version 1.
This chapter explores the following topics:
- Introducing scripts, functions, and filters
- Begin, Process, and End
- Param, parameters, and CmdletBinding
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.