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Introduction MySQL comes with many built-in functions that allow you to manipulate data. These functions are grouped into categories – date functions, string functions, mathematic functions, and othe…

Introduction The passwd command modifies passwords for user accounts and manages the password validity period. This is a must-know utility for user account administration. This article shows exa…

Introduction Environment variables are key-value pairs a system uses to set up a software environment. The environment variables also play a crucial role in certain installations, such as installing …

Introduction Compared to other mainstream operating systems, Linux takes a different approach to software management. The software in Linux is traditionally organized in repositories. Repositories co…

Introduction VirtualBox has excellent features, and it provides the VirtualBox Extension Pack for extending the basic functionalities of the software. Having a remote console to run your VMs or testi…

Introduction MySQL is the most popular open-source relational database management system. It is used to store data into predefined tables and structure it through assigned relations (hence the name r…

Introduction Environment variables are used to store system-wide values that can be used by any user and process under the operating system. Setting environment variables is essential in the steps of…

Introduction Hosting providers are traditionally slow to adopt new PHP versions on their servers. The consequence of this is that many different PHP versions exist on the web at the same time. If you…

Introduction One of the most common ways to configure a network interface in Linux is using the ifconfig command. The command comes preinstalled on many Linux distributions. However, certain distribu…

Introduction The tracepath and traceroute terminal programs are crucial in network diagnostics. Both commands map the network and display possible packet routes and transit delays from a source to a …