echoCTF.RED is an online platform for training offensive and defensive cyber security skills. It offers targets described as specially crafted real-life systems, unique challenges, and CVE-based targets. A learning section provides writeups and tutorials, and a community section lets players practice with other players. Help pages include instructions, an FAQ, rules for participants, and platform credits.
CodingFantasy is a platform for learning HTML, CSS and JavaScript by playing games. It focuses on games that cover various aspects of HTML, CSS and JavaScript. The site positions games as an alternative to videos, courses and articles.
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Learn Shell is a free interactive Shell tutorial for people who want to learn Shell. It offers chapters covering basics such as variables, arrays, operators, decision making, loops and functions, plus advanced topics including special variables and regular expressions. The site states it is intended for everyone who wishes to learn programming with Unix/Linux shell interpreters.
Crackmes.one is a site for downloading crackmes to practice reverse engineering skills. Submitting a crackme or a solution requires registration. Downloads are password-protected. The site lists counts of users, crackmes and writeups, and offers auto-validated crackmes that earn points.
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LearnByExample is a blog covering Python, regular expressions, Linux, scripting, Vim and self-publishing, along with technical articles and book announcements. Posts include a Python regular expression cheatsheet, guides to sed substitution and awk, and tutorials on using pandoc to generate PDF and EPUB files from markdown.
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CodingFantasy is a platform for learning HTML, CSS and JavaScript by playing games. It focuses on games that cover various aspects of HTML, CSS and JavaScript. The site positions games as an alternative to videos, courses and articles.
Game Math provides educational videos, lessons, tutorials, or self-learning resources.
Learn Shell is a free interactive Shell tutorial for people who want to learn Shell. It offers chapters covering basics such as variables, arrays, operators, decision making, loops and functions, plus advanced topics including special variables and regular expressions. The site states it is intended for everyone who wishes to learn programming with Unix/Linux shell interpreters.
Crackmes.one is a site for downloading crackmes to practice reverse engineering skills. Submitting a crackme or a solution requires registration. Downloads are password-protected. The site lists counts of users, crackmes and writeups, and offers auto-validated crackmes that earn points.
A step-by-step guide to fragment shaders by Patricio Gonzalez Vivo and Jen Lowe. It covers topics such as shaping functions, colors, shapes, matrices, patterns, noise, fractals, image processing and 3D graphics, with examples and a glossary. It is available in several languages, including English.
LearnByExample is a blog covering Python, regular expressions, Linux, scripting, Vim and self-publishing, along with technical articles and book announcements. Posts include a Python regular expression cheatsheet, guides to sed substitution and awk, and tutorials on using pandoc to generate PDF and EPUB files from markdown.
