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Up and Running with Bash Scripting
Illustration by Don Barnett

Up and Running with Bash Scripting

with Scott Simpson

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Up and Running with Bash Scripting
1h 25m Beginner Nov 26, 2013

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Bash, or the Bourne Again Shell, is a widely popular command-line interpreter for administration and programming tasks. It's also the default option on Mac OS X and Linux. But Bash is different than most scripting languages. That's why Scott Simpson spends some time in this course running you through the syntax—introducing variables, numbers, and control structures—so you can start writing scripts right away. He shows you how to wrap up multiline operations in one file, implement flow control, and interact with users to get input. Plus, he offers challenges along the way that allow you to put what you've learned to the test.

Topics include:
  • What is Bash?
  • Managing output with grep, awk, and cut
  • Understanding Bash script syntax
  • Creating a basic Bash script
  • Displaying text with "echo"
  • Working with numbers, strings, and arrays
  • Reading and writing text files
  • Working with loops
  • Using functions
  • Getting user input during execution
  • Ensuring a response
Subjects:
Developer Servers Programming Languages
Software:
Bash
Author:
Scott Simpson

Welcome

Hi there. I'm Scott Simpson, and welcome to up and running with Bash Script. Bash, or the Bourne-Again SHell is a widely popular command line interpreter. It's the default command line environment option on Mac OS X and Linux. It's very powerful and if you spend much time working at the command line in Mac OS X or Linux, you're already familiar with some of what it can do. The goal of this course is to get your started writing scripts for use within the Bash environment. Wrapping up multiline operations in one file, implementing logic of flow control, and interacting with a user to get input.

Bash is a little different from many of the programming languages you may be familiar with however. And in this course, I'll lay out the basic syntax and point out some of those differences. You'll see how to work with variables, numbers, and control structures. Then, I'll show you how to interact with the user and do a little bit of basic automation. Because your time is valuable and an in-depth treatment of Bash could go on for many hours. I'll also point out some great resources that you'll be able to use once you have a solid understanding of the basics. So let's get up and running with Bash scripts.

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