Bash programming - Introduction

How to start programming in Bash, without prior programming experience? And making sure it will be fun?

Basics

• Shebang, script files, make files executable, terminal screen
• Display Hello, world!
• Variables (scalars): Assigning & displaying
• Receiving user input & processing it - E.g.: Ask the user for his/her name and displaying something like Hello, <name>!
• Comparisons, e.g., check for empty imput and take appropriate actions
• Flow control: Loops. E.g.: Display the numbers from 1 to 100 on the screen; With a step function; Backwards
• Pipelining. E.g. ls > tmp.txt
• Grep; Pipelining
• Passing arguments to scripts
• Functions
• Evaluating commands

Explore further yourself

• https://www.google.com/search?q=learning+programming+bash+from+scratch

Stuff I get energy from

• WordPress: Update all prices with one small script
• Remove whitespace around pictures with just one command
• Using mmv to update lots of file names at once.

Sources

• https://dev.to/ahmedmusallam/bash-from-scratch-learn-enough-bash-to-write-your-own-scripts-189f