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It won't be wrong to say the ls command is the gold standard when it comes to listing directory contents on the Linux command line. However, there do exist some alternatives that have their own strong points when compared to ls. Once such tool is tree, basics of which we'll be discussing here in this tutorial.

Test techniques play an important role in software development, and this is no different when we are talking about Infrastructure as Code (IaC). Developers are always testing, and constant feedback is necessary to drive development. If it takes too long to get feedback on a change, your steps might be too large, making errors hard to spot. Baby steps and fast feedback are the essence of TDD (test-driven development). But how do you apply this approach to the development of ad hoc playbooks or roles? read more

Every year around this time, people ask me about the best computer to give (or get) for the holidays. I always give the same answer: Linux. After all, if you want your recipients to be happy, why wouldn't you give them the best operating system on the planet? Many people don't realize they have options when it comes to computer operating systems. Just recently, two friends (who didn't do their research) fell for the clever marketing and bought brand-new systems at premium prices. I'm willing to bet that within six months they'll be dissatisfied with those expensive computers. read more

Congatec unveiled two rugged, up to 16-core COM Express Basic Type 7 modules for aircraft computers: a Xeon D 15xx and Pentium D-15xx based Conga-B7XD and an Atom C3xxx driven Conga-B7AC. There’s also a new Conga-X7EVAL Type 7 carrier. Congatec has been slow to get into the COM Express Basic Type 7 “server-on-module” market but […]

Fedora Classroom sessions continue next week with a session on containers with Podman. The general schedule for sessions appears on the wiki. You can also find resources and recordings from previous sessions there. Here are details about this week’s session on Thursday, December 13 at 1600 UTC. That link allows you to convert the time to your timezone. Topic: […]

Microchip’s Microsemi unit unveiled a low power, real-time deterministic “PolarFire SoC” architecture for Linux edge devices that combines its PolarFire FPGA with 4x RISC-V CPU cores supplied by SiFive. At today’s RISC-V Summit in Santa Clara, Calif., Microchip’s Microsemi subsidiary announced a PolarFire SoC architecture developed in collaboration with SiFive. This “fully customizable, programmable RISC-V […]

News briefs for December 4, 2018.

At ELC Europe, Linux kernel developer Laurent Pinchart unveiled a follow-on to the V4L2 stack for embedded cameras. The open source “libcamera” eases the burden on userspace developers, offers improved per-frame and 3A controls, and sandboxes proprietary camera code. The V4L2 (Video for Linux 2) API has long offered an open source alternative to proprietary […]

In the first part of this series, I explained how to use the Joomla Extension Directory to find extensions to expand your Joomla website's functionality. Here, I'll describe the top 14 free Joomla extensions—the ones I don't think any site should do without. The first six tools are free site security tools. read more

With apologies to Arnold and the Terminator franchise for the title, let's look one more time at removing duplicates from the PATH variable. This take on doing it was prompted by a comment from a reader named Shaun on the previous post that asked "if you're willing to use a non-bash solution (AWK) to solve the problem, why not use Perl?" Shaun was kind enough to provide a Perl version of the code, which was good, since I'd have been hard-pressed to come up with one. It's a short piece of code, shorter than the AWK version, so it seemed like it ought to be fairly easy to pick it apart. In the end, I'm not sure I'd call it easy, but it was interesting, and I thought other non-Perl programmers might find it interesting too.

If you strip away all of the modern conveniences and features that make up your internet experience today, what you're left with is the client-server model. This distributed network was what the internet was built on in the beginning, and that part hasn't changed. You could say, it is still serving us well. So, when people talk about serverless, what does it mean? Well, it doesn't mean servers are GONE. Of course not: That "client-server model" is still the backbone of how things are getting done. read more

LimeSurvey is an open source survey software written in PHP. In this tutorial, we will walk you through the LimeSurvey Community Edition (CE) installation process on a fresh CentOS 7 system.

Welcome to the fourth day of the Linux command-line toys advent calendar. If this is your first visit to the series, you might be asking yourself, what’s a command-line toy. We’re figuring that out as we go, but generally, it could be a game, or any simple diversion that helps you have fun at the terminal. Some of you will have seen various selections from our calendar before, but we hope there’s at least one new thing for everyone. Because just about everyone who I’ve mentioned this series to has asked me about it already, today’s selection is an obligatory one. read more

Meanwhile: Another kernel dev is 'unfscking' the source code, with predictable results Linus Torvalds has stuck to his “no swearing” resolution with his regular Sunday night Linux kernel release candidate announcement.…

Leadership works differently at Red Hat. In our open organization, people don't just receive the status of "leader" when appointed to a position or given a title. Instead, leaders earn their leadership positions when they adopt a certain combination of behaviors and mindsets. read more

Another kernel dev is “unfscking” the source code, with predictable results Linus Torvalds has stuck to his “no swearing” resolution with his regular Sunday night release candidate announcement. Probably the most important aspect of the release is that it implements the important “STIBP” performance fix.…

EFCO launched four Linux-ready “Eagle Eye” embedded machine vision computers with Intel 7th/6th Gen Core or Atom processors. The high-end systems support PoE+ IP cameras and EFCO’s AI-infused EKit hardware monitoring platform. EFCO’s Intel-based Eagle Eye systems are designed for machine vision and video applications, as well as other industrial, space-constrained IoT applications. Like its […]

Chances are many of you are thinking about what to get others for the upcoming holiday season as well as what to add to your own wishlist. Regardless of the reason or the season, though, these eight books are ones our writer community recommends to give and receive for any occasion or time of the year.

News briefs for December 3, 2018.

Well, friends, we've almost reached the end of 2018. Before we count down to the New Year, Opensource.com is counting down 24 days of fun Linux command-line tricks. Our first three articles have already published.......