Bash
- Advanced Bash-Scripting Guide – M. Cooper
- Bash Guide for Beginners – M. Garrels
- BASH Programming
- Bash Reference Manual
- BashGuide
- Conquering the Command Line – Mark Bates
- Getting Started with BASH
- Google Shell Style Guide
- Introduction to the Command Line – Launch School
- Linux Fundamentals – Paul Cobbaut (PDF)
- Linux Shell Scripting Tutorial – A Beginner’s Handbook
- Slackbook
- The Bash Academy
- The Command Line Crash Course Z. A. Shaw
- Writing Shell Scripts – William E. Shotts, Jr.
Basic
- 10 PRINT CHR$(205.5+RND(1)); : GOTO 10 – Nick Montfort, Patsy Baudoin, John Bell,Ian Bogost, Jeremy Douglass, Mark C. Marino, Michael Mateas, Casey Reas, Mark Sample, Noah Vawter
- A beginner’s guide to Gambas
- BASIC programming language – Wikibooks
- How To Gambas3 Guides
- Pick/Basic: A Programmer’s Guide – Jonathan E. Sisk
- Visual Basic Essentials
BETA
- Object-Oriented Programming in the BETA Programming Language – Ole Lehrmann Madsen, Birger Møller-Pedersen, Kristen Nygaard
