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Network Automation with Go

Network Automation with Go

By : Nicolas Leiva, Michael Kashin
5 (5)
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Network Automation with Go

Network Automation with Go

5 (5)
By: Nicolas Leiva, Michael Kashin

Overview of this book

Go’s built-in first-class concurrency mechanisms make it an ideal choice for long-lived low-bandwidth I/O operations, which are typical requirements of network automation and network operations applications. This book provides a quick overview of Go and hands-on examples within it to help you become proficient with Go for network automation. It’s a practical guide that will teach you how to automate common network operations and build systems using Go. The first part takes you through a general overview, use cases, strengths, and inherent weaknesses of Go to prepare you for a deeper dive into network automation, which is heavily reliant on understanding this programming language. You’ll explore the common network automation areas and challenges, what language features you can use in each of those areas, and the common software tools and packages. To help deepen your understanding, you’ll also work through real-world network automation problems and apply hands-on solutions to them. By the end of this book, you’ll be well-versed with Go and have a solid grasp on network automation.
Table of Contents (18 chapters)
close
1
Part 1: The Go Programming Language
6
Part 2: Common Tools and Frameworks
10
Part 3: Interacting with APIs

Arithmetic, Comparison and Logical Operators

Operators are special symbols that perform specific mathematical, logical or relational computations on variables of different types. We cover these three types of operators in this section:

  • Arithmetic Operators
  • Logical Operators
  • Comparison Operators

While we don’t cover all corner cases and permutations of types, we’d like to focus on a few operators that might be interesting in the network automation context.

Arithmetic Operators

These operators perform mathematical calculations with numeric values. The resulting value depends on the order and type of the operands.

Table 3.3 – Arithmetic Operators

They follow the standard mathematical logic implemented in most programming languages.

func main() {
    // sum s == 42
    s := 40 + 2
 
    // difference d == 0.14
    d := 3.14 - 3
 
    // product p == 9.42
    p := 3 * 3.14
 
    // quotient q == 0  
    q := 3.0 / 5
 
    // remainder r == 2
    r :=  5 % 3
}

Strings...

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