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As Ubuntu users, especially administrators, we need to keep a check on how much memory resources our system is using and how much of them are free. The article explains the use of the following 5 commands in order to check the available memory.

SonarQube is an open source platform to continuously inspect code quality of applications, it supports more than 20 programming languages and different databases. In this tutorial, we will learn how to install SonarQube on Ubuntu 18.04 LTS (Bionic Beaver).

Phytec’s “phyCore-AM65x SOM” and dev kit runs Linux on TI’s new AM65x SoC, which combines 4x Cortex-A53 cores, a PowerVR GPU, 2x Cortex-R5F MCUs, and 6x real-time PRU chips that support up to 6x TSN capable GbE ports. Texas Instruments recently began sampling its first 64-bit ARMv8 SoC. The dual- or quad-core Cortex-A53 based Sitara […]

Once you learn that HTML is a form of XML, you might wonder what would happen if you tried to view an XML file in a browser. The results are quite disappointing—Firefox shows you a banner at the top of the page that says, "This XML file does not appear to have any style information associated with it. The document tree is shown below." The document tree looks like the file would look in an editor: read more

Gnome Disks has many features, like S.M.A.R.T. monitoring, partition management, benchmarking, and more, including one that might not be obvious, but is very useful: it can set drives to mount automatically at startup.

At Dockercon Europe 2018, Docker details innovations in the latest Docker Engine release and provides some insight into what's coming.

One of Linux's biggest selling points has always been its ability to trim down and use as few resources as possible. Linux can bring old computers back from the dead and make them fully functional again with less resource intensive systems.

We're now on day six of the Linux command-line toys advent calendar, where we explore some of the fun, entertaining, and in some cases, utterly useless toys available for your Linux terminal. All are available under an open source license. Will they all be unique? Yes. Will they all be unique to you? I don't know, but, chances are you'll find at least one new toy to play with by the time our advent calendar is done. read more

Use a simple AWK command to locate the places in a list where the value of a data item suddenly changes.

on DL99: VyOS, Fedora 31 Potential Delay, Performance Killing Kernel Patches Reverted, Blender 2.80 Beta, Necuno Mobile, Kodi 18, Mesa VLK vs. Pro Drivers, Top Gifts For Linux Loved Ones, and more

I have long held the opinion that one of the biggest problems holding back Linux-based systems from dominating (market-share-wise) in the desktop computing space...is marketing. Our lack of attention-grabbing, hearts-and-minds-winning marketing is, in my oh-so-humble opinion, one of the most glaring weaknesses of the Free and Open Source Software world.

Axiomtek’s “SCM180” SMARC module features NXP’s dual- or quad-core i.MX8M SoC with up to 4GB LPDDR4 and 64GB eMMC plus TPM, GbE, HDMI 2.0, MIPI-DSI/CSI, and support for up to -40 to 85°C temperatures. We cover a lot of Axiomtek products, but most are embedded systems or SBCs rather than computer-on-modules, which include last year’s […]

Redis is an open-source in-memory key-value data store. It can be used as a database, cache and message broker and supports various data structures such as Strings, Hashes, Lists, Sets, etc. Redis provides high availability via Redis Sentinel including monitoring, notifications Automatic failover. It also provides automatic partitioning across multiple Redis nodes with Redis Cluster.

Docker CEO Steve Singh, says the container pioneer is growing at a rapid pace and sees the IBM acquisition of Red Hat as an opportunity.

Thanks for another fun month of content and community on Opensource.com! Last month the site brought in 1,004,107 unique visitors who generated 1,524,240 page views. We published 84 articles in November and welcomed 17 new writers.....

I've had the privilege to work with some of the brightest minds and leaders in my 33 years of software engineering. I've also been fortunate to work for a manager who made me question my career daily and systematically broke down my passion—like a destructive fire sucking the oxygen out of a sealed space. It was an unnerving period, but once I broke free, I realized I had the opportunity to reflect on one of the greatest anti-patterns for effective teams. read more

In this article, we will explain how to view the routing table in Ubuntu through the following three popular commands: netstat, ip, and route.

Despite some challenges, IT leaders in healthcare shouldn't ignore blockchain. Here's why

Bash variables, including those pesky environment variables, have been popped up several times in previous articles, and it’s high time you get to know them better and how they can help you. So, open your terminal window and let's get started.