DevOps and Development

Need to find which version of Java is installed on your system? This guide shows you how to do so, using the GUI or the command line, on macOS and Windows.

Install ClickHouse quickly on Ubuntu 20.04 with the instructions provided in this tutorial. We cover everything you need before you install this tool, and we also show you how to get started with ClickHouse.

To avoid running containers with outdated Docker images, update the image and run the container with the latest version. This tutorial shows you how to update a Docker image and container with a step-by-step guide and a practical example.

Need to check your Java version? Use one of these three methods to find the Java version installed on your system (Ubuntu, CentOS, or Debian).

Pip is a standard package manager for Python which you can use to install additional packages that are not part of Python standard library. This tutorial will help you install Pip on CentOS 8.

The ls command (short for “list”) lists information about directories and any type of files in the working directory. Learn how to use ls command in this article.

Ruby is often used in web applications, games, and simple scripts. Follow this simple tutorial and install Ruby on your Windows 10 by using the RubyInstaller Tool or with the Linux Subsystem.

This tutorial introduces you to basic Python Pandas concepts and commands. A selection of clear-cut images and well-defined examples show you how to manage simple data structures.

Persist data in Docker containers by mounting Docker volumes to containers. You can use an existing host directory or create new volumes. This is especially useful when sharing data between multiple containers.

Need to install the ELK stack on Ubuntu 18.04 or 20.04? Follow this guide and set up each layer of the stack - Elasticsearch, Logstash, and Kibana.