Cheat sheets

JavaScript was created for the web, but it can do so much more. Learn the basics, then download our cheat sheet so you always have the details at hand.

Download one of our free guides to build a Python-based video game, get organized with open source tools, work on your home automation project, or experiment with your…

Learn how to install packages on Debian-based Linux distros with the apt command, then download our cheat sheet to keep the right command at your fingertips.

Learn how to install packages on Linux with the dnf command, then download our cheat sheet to keep the right command at your fingertips.

Learn the basics of terminal multiplexing with GNU Screen, then download our cheat sheet so you always have the essential shortcuts at hand.

Systemd's speed and ease make it a popular way to manage modern Linux systems.