September 2018
Beginner
186 pages
4h 30m
English
Content preview from Bash Quick Start Guide
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Variables and Patterns
In this chapter, we'll learn how to work with data and variables in Bash, and how to use them with pattern matching and shell glob syntax. While you can get a lot done by just piping existing commands together, we often need variables to get more fine-tuned behavior from scripts.
We'll cover:
- Variable declarations and scope
- Environment variables
- String operations
- Arithmetic expressions
- Capturing program output in a variable
- Matching filenames with glob patterns
- Using arrays and associative arrays
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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.