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News briefs for September 28, 2018.

Most every Linux distribution is based on another one. Many are based on Ubuntu or Debian, some are based on Fedora, while others are based on Arch Linux. And, even when a distribution offers different types of releases (stable vs. rolling, or various available desktops), they are generally based on the same base platform. Netrunner, however, takes a slightly different approach.

Make the most of your time at Open Source Summit/ELC + OpenIoT Summit Europe! Over a dozen events taking place alongside Open Source Summit and ELC+OpenIoT Summit Europe offer attendees even more ways to increase skills and connections - all in one trip. 300 conference sessions, 2000 attendees, 13 co-located events and dozens of event experiences; if you're not registered yet, now is the time.

Observium is a powerful and flexible free and open source auto-discovery network monitoring software. In this guide, we’ll show you how to install and configure the latest version of Observium Network Monitoring software (Community Edition) on Debian 9 release.

In this tutorial, we will discuss the basics of realpath and readlink commands that are similar (if not same) in the sense that they display resolved symbolic links in output.

Ever wondered why programming in Bash is so difficult? Bash employs the same constructs as traditional programming languages; however, under the hood, the logic is rather different.

Continuous integration (CI) jobs can generate massive volumes of data. When a job fails, figuring out what went wrong can be a tedious process that involves investigating logs to discover the root cause—which is often found in a fraction of the total job output. To make it easier to separate the most relevant data from the rest, the Logreduce machine learning model is trained using previous successful job runs to extract anomalies from failed runs' logs. read more

Octavo unveiled a 27 x 27mm OSD335x C-SiP package that builds on its previous Sitara AM335x based SiP by adding up to 16GB eMMC and an oscillator along with 1GB DDR3, PMIC, LDO, and EEPROM. Octavo Systems unveiled the OSD335x C-SiP, which is its most highly integrated System-In-Package (SiP) module yet. Like its earlier models, […]

I’m a huge fan of Grails. Granted, I’m mostly a data person who likes to explore and analyze data using command-line tools. But even data people sometimes need to look at the data, and sometimes using data means having a great data browser. With Grails, jQuery, and the DataTables jQuery plugin, we can make really nice tabular data browsers. read more

How many times have you repeatedly typed out a long command on the command line and wished there was a way to save it for later? This is where Bash aliases come in handy. They allow you to condense long, cryptic commands down to something easy to remember and use. Need some examples to get you started? No problem! To use a Bash alias you've created, you need to add it to your .bash_profile file, which is located in your home folder. Note that this file is hidden and accessible only from the command line. The easiest way to work with this file is to use something like Vi or Nano. read more

News briefs for September 27, 2018.

Pulsar is a highly scalable, low-latency messaging platform running on commodity hardware. It provides simple pub-sub and queue semantics over topics, lightweight compute framework, automatic cursor management for subscribers, and cross-datacenter replication.

RTMP (Real Time Messaging Protocol) is a high-performance protocol for transmission of data, audio, and video over the internet between flash-based platform technologies. Originally developed by Macromedia, and now owned by Adobe. In this tutorial, I will show you how to install and configure the Nginx web server with the RTMP module.

Three years ago, Mark Russinovich, CTO of Azure, Microsoft's cloud program, said, "One in four [Azure] instances are Linux." Then, in 2017, it was 40 percent Azure virtual machines (VM) were Linux. Today, Scott Guthrie, Microsoft's executive vice president of the cloud and enterprise group, said in an interview, "Slightly over half of Azure VMs are Linux. The most popular operating system on Microsoft's Azure cloud today is -- drumroll please -- Linux.

Acutronic Robotics has launched an Arm-based “H-ROS” module that runs real-time Linux and ROS 2.0 and is designed for modular development of robotic components. It also demo’d a “MARA” robotic arm based on H-ROS. Two years ago, Zurich, Switzerland based Acutronic Robotics acquired Erle Robotics, the Basque, Spain based manufacturers of open source, Linux-driven robots […]

Environment variables play a major role in Linux. Most programs, whether command line based or GUI based, deal with environment variables in one way or the other. So naturally, there are tools that let you access environment variables from the command line. One such tool is printenv. In this tutorial, we will discuss printenv using some easy to understand examples.

The Linux desktop ecosystem offers multiple window managers (WMs). Some are developed as part of a desktop environment. Others are meant to be used as standalone application. This is the case of tiling WMs, which offer a more lightweight, customized environment. This article presents five such tiling WMs for you to try out. i3 i3 […]

In the first four articles in this series comparing Perl 5 to Perl 6, we looked into some of the issues you might encounter when migrating code, how garbage collection works, why containers replaced references, and using (subroutine) signatures in Perl 6 and how these things differ from Perl 5. read more

The KDE neon team is proud to announce the rebase of our packages onto Ubuntu 18.04 LTS "Bionic Beaver".  We encourage all users to upgrade now.  The installable ISOs and Docker images have also been updated to run on 18.04.

GNU was publicly announced on September 27, 1983, and today has a strong following. GNU is... an operating system an extensive collection of computer software free software licensed under the GNU Project's own General Public License (GPL) What else is GNU to you? Which tool is your favorite? Here are five great responses. read more