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This is the latest in our series of articles highlighting essential system tools. These are small, indispensable utilities, useful for system administrators as well as regular users of Linux based systems. The series examines both graphical and text based open source utilities. For this article, we’ll look at QDirStat, a graphical application to show what’s devouring your disk space and help you tidy up the disorder.

There are plenty of specialized Linux distributions for the Raspberry Pi. Here are some of the best Linux distro you can run on Raspberry Pi.

Apache Cassandra is a free and open source NoSQL database with no single point of failure. It provides linear scalability and high availability without compromising performance. Apache Cassandra is used by a number of organizations including Apple, NetFlix, eBay, and Easou.

Berners-Lee's WorldWideWeb code can't handle much, but hey, it now runs in a browser In preparation for next month's 30th anniversary of the proposal that gave us the world wide web, boffins at the behest of CERN have recreated the world's first web browser, and made it accessible as a modern web page.…

The KDE Project released today the first point release of the latest KDE Plasma 5.15 desktop environment series to address various issues and annoyances reported by users.

Cachet is a beautiful and powerful open source status page system written in PHP that allows you to better communicate downtime and system failures to your customers, teams, and shareholders.

Offensive Security announced today the general availability of the Kali Linux 2019.1, the first update of the popular ethical hacking and penetration testing operating system in 2019.

When you think of the word wiki, chances are the first thing that comes to mind is Wikipedia. That's not a surprise, considering that Wikipedia did help put the concept of the wiki into the popular consciousness. Wikis, which are websites you can edit, are great tools for collaborating and organizing. But wikis usually require a lot of digital plumbing and a bit of care to use and maintain. All of that's overkill for personal use. read more

Using jumpapp you can create a single keyboard shortcut that will launch an application if it's not already running, or focus the application window if it's already running. If there is more than one application window open, pressing the keyboard shortcut repeatedly cycles through all the application windows.

If you've ever wondered how your Linux computer stacks up against other Linux, Windows, and MacOS machines or searched for reviews of Linux-compatible hardware, you're probably familiar with Phoronix. read more

In the previous two tutorials, we discussed the basics of variables including how they occupy memory. But we mainly focused on integers and floats. In this tutorial, we will discuss about characters (or char type variables).

News briefs for February 19, 2019.

There are a lot of great open source tools out there for storing secrets in Git. It can be hard to determine the right one for you and your organization—it depends on your use cases and requirements. To help you compare and choose, we'll look at four of the most popular open source tools for secrets management and see how they stack up against each other: read more

Organizer is a new, work in progress GTK application to organize your files on Linux. The directory organizer application moves files to a new directory based on their type. Select a folder and Organizer will move all existing jpg and png files to a new Images folder, zip, rar and tar.gz files to an Archives folder, pdf, odt and docx files to a Documents folder, and so on.

Who do you think you are? Paris-based code botherer CAST Software said today it would buddy up with Software Heritage to tackle the sometimes tricky task of identifying the provenance of open-source code in modern projects.…

If you are at all familiar with binary operations, you will have heard of AND and OR. These are bitwise operations that operate on individual bits of a binary number. In Bash, you use & as the AND operator and | as the OR operator:

I'm lucky to work with a team of impressive students at Duke University who are leaders in their classrooms and beyond. As members of CSbyUs, a non-profit and student-run organization based at Duke, we connect university students to middle school students, mostly from title I schools across North Carolina's Research Triangle Park. Our mission is to fuel future change agents from under-resourced learning environments by fostering critical technology skills for thriving in the digital age. read more

Mind mapping is a fairly free flowing concept. This means you need software that is versatile, and can adapt to your requirements. Your idea of a neat and tidy mind map might be another person’s idea of bamboozling.

In the past, the speech-to-text technology was dominated by proprietary software and libraries; Open source alternatives didn’t exist or existed with extreme limitations and no community around. This is changing, today there are a lot of open source speech-to-text tools and libraries that you can use right now.

Here we list 5 of them.

2DayGeek: s-tui allows to monitor CPU temperature, frequency, power and utilization in a graphical way from the terminal.