The bcrypt is a cryptographic hash function that commonly used for password hashing. Learn how to generate password hash using bcrypt. A table includes a links to posts with examples...

CMake is a tool that uses configuration file called CMakeLists.txt to generate standard build files such as makefiles on Unix systems, Visual Studio project files on Windows, and so on...

Man pages is one of the ways to get information about commands on Unix-like operating systems. However, man pages are often too long or too complicated for learning. TLDR (Too...

While working with data, we may need to perform various operations. For example, to check if two arrays have at least one common element. A table includes a links to...

Hyperfine is a tool that allows to benchmark commands via command line. This tool runs command several times and measures execution time of it. This tutorial shows how to install...

The micro is a text editor that allows to create and modify text files via command line. It supports syntax highlighting, line numbers, common keybindings (CTRL+C, CTRL+V, …), undo/redo, text...

While working with data, we may need to perform various operations. For example, to count the frequency of each element in an array. A table includes a links to posts...

While working with data filtering, sometimes we may need to check if a string contains only numbers. Programming languages provides various methods to do that. A table includes a links...

GitHub CLI is a tool that enables to login to GitHub account via command line and manage pull requests, issues, releases, gists, and other GitHub actions. This tutorial demonstrates how...

This post presents circuit for blinking LEDs according to rhythm of the music. A microphone picks up sound waves and converts them into an electrical signal. Circuit is based on...