Linguagem C
- C programming Tutorial - Introduction to C Programming (for Novices & First-Time Programmers)
- C Programming Tutorial
- C - Quick Guide
- Learn C Programming
- The CLibrary Reference Guide
- C Standard Library Reference Tutorial
- Programming in C, UNIX System Calls and Subroutines using C
Reference Cards
- C Reference Card
- Emacs reference card
- GDB Quick Reference
- Guia de referência de comandos Unix
- Survival Emacs
- Unix/Linux Command Reference
- Linux Quick Reference