DevOps and Development

The core of the grep command (Global Regular Expressions Print) is regular expressions. Master grep regex through the hands-on examples in this guide.

Podman is a container engine developed by RedHat as a direct alternative to Docker. This tutorial will help you understand how Podman works and explain its command syntax. It will also provide examples of the important commands.

The need to diversify the offer in the containerization tools market prompted the creation of container management tools that can compete with Docker. This article will introduce you to Podman, a daemonless container engine developed by RedHat.

Docker is a platform synonymous with app containerization. However, there are other projects that aim to diversify the offer in the container management market. Podman is one of the open-source projects that has recently become popular. This article will show you how to install Podman on macOS using Homebrew.

This tutorial shows how to read a file line by line using the Bash shell. See five different methods and process a file's contents effectively.

Container management and orchestration platforms are designed to be intuitive and simple for the end user. However, the platforms themselves are complex and consist of multiple coordinated projects. This article will explain the differences between three important parts of the container management ecosystem - Docker, containerd, and CRI-O.

A HereDoc helps pass multiple commands to another command, making redirection and Bash scripts easier to understand. Learn how to write a HereDoc through various examples in this guide.

Git has a lot of features that help you manage your project and easily access previous commits. This article uses simple commands to show you how to revert to an earlier commit quickly.

You can activate line numbering in Vim by showing absolute, relative or hybrid lines. Displaying or hiding line numbers can be done in a couple of simple steps.

Working with files is part of everyday tasks in programming. This tutorial teaches you elementary file handling in Python.