Bash Programming

Bash, a powerful programming language, is perfectly designed for command line and shell scripts. In this module, we’ll learn how to use Bash. Its features will help us solve our daily computer tasks and even automate some of them.

This module covers the general principles of computing operations and basic programming concepts in detail. It will also help us consolidate our new knowledge through exercises for each topic. Overall, this experience should be a great start to our Bash programming journey.

Basic Programming with Bash

## Linux

If you use Linux, you do not need to install Bash. You already have it. Just press the keyboard shortcut Ctrl+Alt+T to open a window with the Bash shell.

## macOS

If you use macOS, you have everything to launch Bash, too. Follow these steps to install Bash on macOS:

1. Click the magnifying glass icon in the upper right corner of the screen. It opens the Spotlight search program.

2. The dialog box appears. Enter the text “Terminal” there.

3. Spotlight shows you a list of applications. Click on the first line in the list with the “Terminal” text.

# Linux

If you use Linux, you do not need to install Bash. You already have it. Just press the keyboard shortcut Ctrl+Alt+T to open a window with the Bash shell.

# macOS

If you use macOS, you have everything to launch Bash, too. Follow these steps to install Bash on macOS:

1. Click the magnifying glass icon in the upper right corner of the screen. It opens the Spotlight search program.

2. The dialog box appears. Enter the text “Terminal” there.

3. Spotlight shows you a list of applications. Click on the first line in the list with the “Terminal” text.

Learn what you need to do to use Bash on Linux and macOS.

Before We Begin

File System

Command Information

Bash Extra Features

Scripts Features

Variables and Parameters

Conditional Statements

Arithmetic Expressions and Operations

Bitwise Operations

Logical Operations and Increments

Loop Operators

Functions

Package Manager

Bash Programming from Scratch

Bash Scripts Tools

APPENDIX

Conclusion

Bash on macOS

Linux