GitHub - jlevy/the-art-of-command-line: Master the command line, in one page
[https://github.com/jlevy/the-art-of-command-line] - - public:xxx
The Unix Game
[https://www.unixgame.io/unix50] - - public:xxx
The Unix Game is an online programming contest developed by Nokia Bell Labs in honor of the 50th anniversary of Unix. It features Unix-related questions that you must solve by combining the original Unix commands using Unix pipes.