The USACO Guide is a free collection of curated competitive programming resources intended to take contestants from USACO Bronze to USACO Platinum and beyond. It includes modules, extensive problemsets, progress tracking and a forum, and the guide states it is not an official syllabus.
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.
Game Math provides educational videos, lessons, tutorials, or self-learning resources.
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.
Untrusted provides educational videos, lessons, tutorials, or self-learning resources.
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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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.
Game Math provides educational videos, lessons, tutorials, or self-learning resources.
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.
Untrusted provides educational videos, lessons, tutorials, or self-learning resources.
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.
