October 2024
Beginner to intermediate
698 pages
16h 7m
English
Content preview from The Ultimate Linux Shell Scripting Guide
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11
Performing Mathematical Operations
The various operating system shells all have means of performing mathematical operations either from the command-line, or from within a shell script. In this chapter, we’ll look at how to perform operations with both integer and floating point math.
Topics in this chapter include:
- Performing integer math with expressions
- Performing integer math with integer variables
- Performing floating point math with
bc
If you’re ready, let’s get started.
Technical Requirements
Use any of your Linux virtual machines for this. And, as always, you can download the scripts by doing:
git clone https://github.com/PacktPublishing/The-Ultimate-Linux-Shell-Scripting-Guide.git
Performing Integer Math with Expressions
You can ...
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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.