yl's blog

A series of utils used to manipulate data including grep sed sort uniq paste awk wc bc st R gnuplot xargs ffmpeg less.

Introduction to vim editor.

Introduction to Command Line Environment, get used to utils like tmux, ssh, unix signals and so on.

Introduction to version control system -- Git.

Teach how to debug a program including print, log and gdb and how to profile a program using various tools and approaches.

Introduction to build system, version number, continuous integration and tesing.

Introduction to security and cryptography, covering entropy, hash function, symmetric and asymmetric cryptography.

Other interesting stuff like deamon process, FUSE, backup, API, window manager, VPN, Docker and so on.

Learning notes of course "Formal Languages and Automata".

Introduction to Dart Programming Language including basic syntax, data types, functions, OOP and asynchronous programming.