November 2018
Intermediate to advanced
566 pages
17h 15m
English
Content preview from PowerShell Core for Linux Administrators Cookbook
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Using environment variables
In this recipe, you will learn about environment variables. When interacting with the system through a shell session, there are many pieces of information that the shell requires in order to determine the program access, the available resources, default configuration, system properties, and so on. Some of these settings are configured within the system as variables, and these settings are commonly called environment variables.
While hardcoding this information during installation is one way to go, it makes the entire system a monolith that cannot be reconfigured without what is known as nuking-and-paving. With environment variables, another layer of flexibility is introduced.
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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.