#HowTo.
29 posts filed under this topic.
How to Debug a Slow SQL Query in PostgreSQL
Step-by-step: find slow queries with pg_stat_statements, read EXPLAIN ANALYZE output, identify missing indexes, fix N+1 queries, and diagnose lock contention.
How to Exit Vim, Vi, and Nano (Step by Step)
Stuck in Vim? Here is exactly how to save and exit, quit without saving, and force-quit Vim, Vi, and Nano — with every command you need and why they work.
How to Install VS Code on Ubuntu, macOS and Windows
Install Visual Studio Code on any OS using apt, Snap, Homebrew, or winget — with the essential extensions every developer should add first.
How to Install Docker on Ubuntu, macOS and Windows
Install Docker Desktop or Docker Engine step-by-step on Ubuntu, macOS, and Windows — including post-install setup, running your first container, and Docker Compose.
How to Install Node.js on Ubuntu, macOS and Windows
Install Node.js using nvm, Homebrew, or the official installer — step-by-step for Ubuntu, macOS, and Windows. Includes switching versions and verifying your install.
How to Install Python on Ubuntu, macOS and Windows
Install Python 3 using pyenv, Homebrew, or the official installer — step-by-step for Ubuntu, macOS, and Windows. Includes pip, virtual environments, and version switching.
How to Install Git on Ubuntu, macOS and Windows
Install Git on any operating system — apt, Homebrew, or the official installer — plus first-time configuration, SSH setup, and verifying your install.
How to Run PostgreSQL Locally with Docker
Run a full PostgreSQL database locally in under 2 minutes using Docker — with persistent volumes, docker-compose setup, GUI client access, and dump/restore commands.
How to Set Up a .env File and Stop Leaking Secrets
What .env files are, how to load them in Node.js, Python, and Docker, the common mistakes that expose API keys, and how to manage secrets safely in production.
How to Set Up SSH Keys for GitHub (All Platforms)
Generate an SSH key, add it to GitHub, and never type a password again. Step-by-step for Ubuntu, macOS, and Windows — including multiple accounts and troubleshooting.
How to Write a Production Dockerfile for Node.js
Build small, fast, production-ready Docker images for Node.js — layer caching, multi-stage builds, non-root user, health checks, and .dockerignore explained.
Install Postman on Ubuntu
Learn how to install Postman on Ubuntu using Snap or the official Linux tarball, with steps for launching, updating, and removing it.
Install XAMPP on Ubuntu
Learn how to install XAMPP on Ubuntu, start and stop it from the terminal, open the manager, and remove it cleanly when needed.
Mastering Live Expressions in Chrome DevTools
Live Expressions in Chrome DevTools is a powerful feature that allows developers to monitor variable values in real-time, streamlining the debugging process and providing valuable insights into the behavior of their code.
Install GitHub Desktop on Ubuntu or Ubuntu-based distributions
This article helps you to install GitHub Desktop an open-source application on Ubuntu. Features like syntax highlighted diffs, image diff, cross-platform and many more make it worth trying.
Install Spotify on Ubuntu
Learn how to install Spotify on Ubuntu using Snap or Spotify's official Debian repository, plus how to update and remove it later.
Rename file or folder in Google Drive
How to rename file or folder in Google Drive. One of the most popular & widely accepted cloud storage, allowing users to store 15GB free storage. It allows you to store and share your files in cloud.
Install Telegram on Ubuntu
Learn how to install Telegram Desktop on Ubuntu using Snap or the official Linux tarball, then update or remove it cleanly.
Install Hugo on Ubuntu 20.04 or Ubuntu-based distributions
This article helps you to install hugo an open source static site generator on Ubuntu 20.04 in two different ways. It can be installed via a `snap package` or with `apt`.
Install OBS Studio on Ubuntu 20.04 or Ubuntu-based distributions
This article helps you to install OBS Studio on Ubuntu 20.04. It can be install with PPA via `apt` command.
Install OpenShot on Ubuntu 20.04 or Ubuntu-based distributions
This article helps you to install openshot on Ubuntu 20.04. It can be run with AppImage or install via `apt`.
Install GhostWriter on Ubuntu 20.04 or Ubuntu-based distributions
This article helps you to install ghostwriter on Ubuntu 20.04. It can be installed via a `Software Center` or with `apt`.
Install Chromium Web Browser on Ubuntu 20.04 or Ubuntu-based distributions
This article helps you to install Chromium on Ubuntu 20.04 in two different ways. Chromium can be installed via a `snap package` or with `apt`.
Install Signal Desktop on Ubuntu
Learn how to install Signal Desktop on Ubuntu using Signal's official Debian repository, then link, update, and remove it cleanly.
How to allow remote access to MySQL database server
How to allow remote access to MySQL database server
With Chrome Music Lab make Songs in your browser
Prepare your own music with Google in web browsers
Install DuckDuckGo on any device to take your privacy back!
Install DuckDuckGo on any device to take your privacy back!
Stop websites from asking the most annoying to show notifications
Web browser allows websites to show you notifications. Nowadays every damn site including YouTube, Facebook and a lot more, opens a most annoying popup asking for a permission to show notifications on your desktop. Lets see how to stop them.
Show or Hide Number of Notifications on Action Center Icon in Taskbar in Windows 10
Customize your action center to show or hide notifications in Windows 10