SysAdmin

Hostname is a unique identifier of a computer on a network. This tutorial details ways in which you can change your Ubuntu 20.04 machine's hostname, using command line or GUI.

Knowing which version is set up on the system is necessary when installing a Java-based app, since different applications require different Java versions. This guide shows you how to do so on macOS. In addition to the standard CLI approach, the article included GUI steps available for older Java versions.

The ifconfig command is still used to configure network interfaces, even though it is deprecated. Read this tutorial and learn how to fix the "command not found" error.

Java is a widely-used programming language, ideal for creating everything from lightweight mobile apps to desktop applications. This guide will walk you through the straightforward process checking the Java version on Ubuntu.

This article explores several highly efficient methods that allow you to export a MySQL table as a CSV file. As a CSV file, the data from your tables becomes much more accessible, both to humans and a host of other applications.

This article guides you through the Java installation process on Raspberry Pi. You will also learn how to set the system-wide Java version in use as well as define the JAVA_HOME path environment variable.

Use the diff command to compare files line-by-line and see how to modify them to make them identical.

Go is a modern, open-source language that streamlines software development. Read this tutorial to learn how to install Go on Debian.

Setting file and directory permission properly is important in multi-user systems such as Linux. You can set permission recursively using the chmod or find command and grant privileges or restrict access in a single command.

Vim color schemes are a handy feature for setting syntax highlighting. You can choose from a wide variety of ready-made themes or configure your own color set and highlight preference. This article shows you everything you need to know to master Vim color schemes.