Online LearningOnline LearningLearning

C++

Learning C++ The Language

C++ Super-FAQ

continously updated wiki-based FAQ; a merger of Marshall Cline’s C++ FAQs and Bjarne Stroustrup’s C++ FAQ
C++ Weekly

excellent series of videos about various C++ topics, best practices, etc. by Jason Turner
C++ Standard Algorithms (Videos Series)

by Connor Hoekstra
C++ Code Quizzes
Blogs About C++

Guidelines & Best Practices Guidelines Guidelines

Core Guidelines	programming guidelines for professional C++ developers; by Bjarne Stroustrup, Herb Sutter and many others
C++ Best Practices	by Jason Turner
C++ Idioms	repository of C++ idioms / design patterns
C++ Patterns	community-curated repository of C++ patterns and code snippets

Language References References

cppreference	community-curated standard library and language reference C++98 - C++20 and technical specifications (TS) C89 - C17 many (runnable) examples
cplusplus	standard library reference with examples, C++98 - C++14

ISO C++ Standard (Working Papers) ISO Std.

HTML and PDF versions of the latest standard drafts and technical specifications.

Tooling Tools

Build Systems

GNU Make

CMake

Bazel

Bazel Tutorial

Version Control

Learn git Branching Interactive Tutorial
git Training Kit Cheat Sheets in Multiple Languages
git Branching Cheat Sheet
git Revisions Cheat Sheet
git Tricks Cheat Sheet

tig Commands Cheat Sheet

Command Line

VIM (Usage & Scripting) VIM VIM

Learn Vimscript The Hard Way

excellent step-by-step tutorial with examples and exercises
Vimscript Snippets

short examples for how to use the most common vimscript functions

Related …

Rico's Cheat Sheets (for tools & languages)
Wizardzines – Nice Cheat Sheets and Posters