1. Aprende
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  2. Cursos
    3. /
  3. Introduction to Bash Scripting
  • 1

    From Command-Line to Bash Script

    Gratuito

    Save yourself time when performing complex repetitive tasks. You’ll begin this course by refreshing your knowledge of common command-line programs and arguments before quickly moving into the world of Bash scripting. You’ll create simple command-line pipelines and then transform these into Bash scripts. You’ll then boost your skills and learn about standard streams and feeding arguments to your Bash scripts.

  • 2

    Variables in Bash Scripting

    Master the bread and butter of Bash scripts—variables! In this chapter, you’ll learn how to create basic string and numeric variables, and perform calculations on these variables. You’ll also learn about the magic of a shell-within-a-shell (shell-ception), opening up huge opportunities for advanced scripting.

  • 3

    Control Statements in Bash Scripting

    Life isn't always linear and neither should your Bash scripts. In this chapter, you’ll take your Bash scripts to the next level by learning control statements. You’ll learn the differences between FOR, WHILE, IF, and CASE statements and how to use them in your Bash scripts. Armed with these new tools, you’ll be ready to create more advanced Bash scripts with conditional logic.

  • 4

    Functions and Automation

    Give your Bash scripts a powerful new addition by building useful functions to process data and variables. In this last chapter, you will learn the structure of functions in Bash, how to use functions to help automate frequent tasks, and program your scripts to run on schedule without needing to even lift a finger.

Initializing

Ejercicio

Creating an array

In this exercise, you will practice building and accessing key properties of an array. Understanding what key properties are built in to Bash is important for fully utilizing arrays. For example, when iterating through arrays, knowing their length is very handy. Similarly, knowing how to easily return all array elements is also important for looping and also for checking your work and printing.

In this exercise, you will firstly build an array using two different methods and then access the length of the array. You will then return the entire array using a different special property.

Instrucciones 1/3

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  • Create a normal array called capital_cities which contains the cities Sydney, Albany and Paris. Do not use the declare method; fill the array as you create it. Be sure to put double quotation marks around each element!