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Although software engineers regularly use the command line for many aspects of development, arrays are likely one of the more obscure features of the command line (although not as obscure as the regex operator =~). But obscurity and questionable syntax aside, Bash arrays can be very powerful. read more

SHOUTcast is a free, open source and cross-platform software application that can be used to stream media over the Internet. In this tutorial, we will learn how to install SHOUTcast media server on Ubuntu 18.04 LTS (Bionic Beaver).

Attempts to establish Linux as a gaming platform have failed time and time again, with Valve’s SteamOS being the latest high-profile casualty. Yet, Linux has emerged as a significant platform in the much smaller niche of retro gaming, especially on the Raspberry Pi. Atari has now re-emerged from the fog of gaming history with an Ubuntu-based Atari VCS gaming and media streaming console aimed at retro gamers.

Looking for a command line utility to sort content in text files? Look no further than Sort, a tool specifically built for this purpose. In this tutorial, we will discuss this command using some easy to understand examples.

Tesla is still a long way from fully releasing its cars' full open-source programs and Linux operating system code, but it's on its way.

News briefs for May 30, 2018.

When I learned that our new sister company, Private Internet Access (PIA), was opening its source code, I immediately wanted to know the backstory, especially since privacy is the theme of this month's Linux Journal. So I contacted Andrew Lee, who founded PIA, and an interview ensued. Here it is.

Trac is a free and an open source Web-based project management and bug tracking system that helps developers to write great software while staying out of the way. In this tutorial, we will learn how to install Trac on Ubuntu 18.04.

This article was co-written with Lacey Williams Henschel. Sometimes the right tool for the job is a command-line application. A command-line application is a program that you interact with and run from something like your shell or Terminal. Git and Curl are examples of command-line applications that you might already be familiar with. read more

Passwords. They're the bane of computer users and a necessary evil, but they have risks and challenges associated with them. None of the choices are great. If it's up to your memory, you'll end up using the same password again and again.

At Wallaroo Labs, where I'm the VP of engineering, we're are building a high-performance, distributed stream processor written in the Pony programming language. Most people haven't heard of Pony, but it has been an excellent choice for Wallaroo, and it might be an excellent choice for your next project, too. read more

Apache Tomcat is an open source Java Servlet implementation developed by the Apache Software Foundation. In this tutorial, we will show you how to install and configure the Apache Tomcat 9.0.8 on Ubuntu 18.04 LTS (Bionic Beaver). We will also learn how to install Java on Ubuntu 18.04, configure a user for apache tomcat, and run the apache tomcat as a systemd service.

Matrix is a protocol for decentralized instant messaging that has recently grown in popularity. Matrix can be used for a wide range of communication tasks, such as group chats, video chats, sharing files, and bridging to existing IRC rooms. One of the easiest ways to use Matrix is the RiotIM web client or desktop application.

Claudia Garad is the Executive Director of Wikimedia Österreich, Wikipedia's Austrian chapter. Claudia will deliver Akademy's second keynote on Sunday, 12th of August. Claudia graciously met up with us (Ivana and Paul) to tell us all about her job, how the Wikipedia community works and the challenges it faces. This is what she told us.

News briefs for May 29, 2018.

Today on "Cooking with Linux without a Net", I cover (and install) @RocketChat , show you another Linux distribution you've never heard of (Nitrux Linux), and hunt rootkits and perform security audits. Oh, and I crash and burn too. Much fun was had, so watch and enjoy.

Last week, an article on Linux vs. Unix was our most popular read. See what else Opensource.com readers were into.

Shenzhen Xunlong’s open-spec, $25 “Orange Pi 3G-IOT” SBC runs Android 4.4 on a dual Cortex-A7 MediaTek MT6572, and supplies WiFi, BT, GPS, FM, and 3G, along with 40-pin GPIO. If you want a cellular connected hacker board, but don’t have access to or want 2G service and don’t have or can’t afford 4G LTE, Shenzhen Xunlong’s new Orange Pi 3G-IOT may be the “just right” compromise........

Looking inside a binary/executable file to grab human-readable strings isn't the kind of work that everybody does, but what if you are asked to do this? Opening the file in an editor, and manually looking for stuff isn't an elegant solution. So, what to do? Yes, you guessed it right - there exists a command line utility that does this for you.

This article is part of a Go series by Mihalis Tsoukalos. Read part 1: Creating random, secure passwords in Go. read more