In Linux systems, environmental and shell variables are used to determine operating conditions for the shell. They can be passed down to child processes and can be used to set options and make certain information ava...

Finding files is a very common task on any operating system. The Linux "find" and "locate" commands can both be used to search for files on the filesystem. This guide will cover how to use these two tools to craft spe...

Grep is a tool used to search for specified patterns within text input using regular expressions. Regular expressions are a system for describing complex text patterns. Regular expressions are a powerful tool that c...

Linux may be daunting to learn about at first, but familiarising yourself with the operating system is easy. The basics are simple, and you'll learn skills to arm yourself with knowledge in the future.

Neural networks are used as a method of deep learning, one of the many subfields of artificial intelligence. They were first proposed around 70 years ago, as an attempt at simulating the way the human brain works, tho...

The sed stream editor is a non-interactive line editor that can perform powerful editing operations on text streams or files. Learning to use sed well will allow you to transform text with great speed and flexibility.

Awk is a programming language and utility included in all Linux distributions that can be used to manipulate and process text files in a fine-grained manner. In this guide, we will discuss the basics of how to use aw...

Iterate through the files in a directory and run commands against them using shell scripting loops.

Download files from a remote server to your local system from the command-line using the curl command.

This tutorial will provide users who are new to terminal environments with the basics of using a command-line interface, providing a primer for understanding how to use Linux cloud servers.

One of the most fundamental parts of working with databases is the practice of retrieving information about the data held within them. In relational database management systems, any operation used to retrieve informat...

In this tutorial we will download and install Deno on Ubuntu 20.04, and run a hello world statement to test out our installation. Deno is a new JavaScript runtime being developed by the creator of Node.js, with a focu...

Wget is a command-line tool that lets you download files and interact with REST APIs. In this tutorial, learn how to customize your download experience, interact with REST API endpoints, and create a Droplet on your D...

Generate universally unique identifiers from the command-line using the uuidgen command.

The sed stream editor can be used to perform complex editing operations with a minimal amount of instruction. The automated nature of sed makes it perfect for use in scripts and background processing. This article w...

Learn how to make network requests from the command-line using commands like GET, POST and HEAD provided by lwp-request.

A Redis hash is a data type that represents a mapping between a string field and a string value. A single hash can hold many field-value pairs and are designed to not take up much space, making them ideal for represen...