SysAdmin

Snap vs APT: What's the Difference?

January 21, 2021

The software in Linux is traditionally organized in repositories that contain applications and all the dependencies necessary to run them. However, there are also some alternate ways of software deployment. This article compares the Snap packaging system and the APT package manager.

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How To Install VirtualBox Extension Pack

January 20, 2021

This article gives a step-by-step guide on how to install the VirtualBox extension pack using a GUI or a CLI in Windows, macOS or Linux. Get insight into some of its features.

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MySQL Commands Cheat Sheet


Need a reference sheet for all the important MySQL commands? Check out this MySQL Commands article which includes a downloadable MySQL cheat sheet in PDF format.

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How to Set Environment Variables in MacOS

January 18, 2021

Environment variables store values that help build the system environment and run processes.
In this tutorial, learn how to set, view, and unset environment variables in macOS.

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What Is Git Upstream And How To Set Upstream Branch


In order to properly track your changes and push them to Git, you need to set a remote upstream branch. Learn about upstream branches and how to set them in this tutorial.

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How to Check PHP Version

January 14, 2021

To avoid compatibility problems when implementing new PHP-related features or debugging a website, it is useful to know the PHP version you are working with. This tutorial explains how to check the PHP version running on your website or a local machine.

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How to Install and Use ifconfig on CentOS 7

January 12, 2021

The ifconfig command is a tool for network interface management that is used to enable/disable interfaces, manage IP addresses, netmasks, MAC addresses, etc. This tutorial shows how to install and use the ifconfig command on CentOS 7.

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What is Umask and How to Use It

December 30, 2020

The umask command on Linux lets you interact with your system's default permissions and fine-tune permissions for new files and folders.
This tutorial shows you what umask is, how it works, and how best to use it.

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List of kubectl Commands with Examples (+kubectl Cheat Sheet)

December 24, 2020

The Kubernetes command-line tool, kubectl, allows you to control Kubernetes by carrying out HTTP requests to the Kubernetes API. This reference guide provides a list of the most common kubectl commands, along with a handy, downloadable cheat sheet.

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How to Set Environment Variables in Linux

December 17, 2020

Environment variables play a significant role in setting up the system and shell configuration at the beginning of every shell session. This tutorial explains how to view, set, manage, and unset environment variables in Linux.

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