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Duf also called "Disk Usage Free utility" is a free and open-source tool written in Golang. It is used to display disk usage of the system in a tabular format. In this post, we will show you how to monitor disk usage with the Duf utility on Ubuntu 20.04.

Many Linux programmers use the find command every single day of their career. But find gives a limited set of filesystem entries, and if you have to do a large set of find operations, it's not even very fast. So instead, I prefer to use the Rust fd command because it provides sensible defaults that work for most use cases.

Not all applications need configuration files; many applications benefit from starting fresh each time they are launched. Simple utilities, for instance, rarely require preferences or settings that persist across uses. However, when you write a complex application, it's nice for users to be able to configure how they interact with it and how it interacts with their system. That's what configuration files are for, and this article discusses some of the ways you can implement persistent settings with the Lua programming language.

In the early days of personal computing—from the late 1970s and through the 1980s—many people got their start with BASIC programming. BASIC was a universal programming language that came built into most personal computers, from Apple to IBM PCs. When we started the FreeDOS Project in June 1994, it seemed natural that we should include an open source BASIC environment. I was excited to discover one already existed in Bywater BASIC.

The Python developers have already released three beta versions of Python 3.10.0. You can try the latest one in Fedora Linux today! Test your Python code with 3.10 early to be ready for the final 3.10.0 release in October. Install Python 3.10 on Fedora Linux If you run Fedora Linux, you can install Python 3.10 […]

If you work on the Linux command line, you will be familiar with the du command. Knowing commands like du, which returns information about disk usage quickly, is one of the ways the command line makes programmers more productive. Yet if you're looking for a way to save even more time and make your life even easier, take a look at dust, which is du rewritten in Rust with more intuitiveness. read more

Tetris is our childhood favorite falling blocks game. The 90s generation has literally grown up playing this game and the best thing about it is that even today, it is as popular as it was years ago.

When I was growing up, it seemed every "personal computer" from the TRS-80 to the Commodore to the Apple let you write your own programs in the Beginners' All-purpose Symbolic Instruction Code (BASIC) programming language. Our family had a clone of the Apple II called the Franklin ACE 1000, which—as a clone—also ran AppleSoft BASIC. I took to AppleSoft BASIC right away and read books and magazines to teach myself about BASIC programming.

There are thousands of configuration files on your computer. You may never directly interact with the bulk of them, but they're scattered throughout your /etc folder and in ~/.config and ~/.local and /usr. There are probably some in /var and possibly even in /opt. If you've ever opened one by accident or to make a change, you may have wondered why some configuration files look one way while others look completely different.

On Linux, I often use the GNU Emacs editor to write the source code for new programs. I learned GNU Emacs long ago when I was an undergraduate student, and I still have the "finger memory" for all the keyboard shortcuts. When I started work on FreeDOS in 1994, I wanted to include an Emacs-like text editor. You can find many editors similar to Emacs, such as MicroEmacs, but these all take some shortcuts to fit into the 16-bit address space on DOS. However, I was very pleased to find Freemacs, by Russell "Russ" Nelson.

Neos CMS is a free and open-source content management system that allows you to build your website easily. In this post, we will show you how to install Neos CMS with Apache on Ubuntu 20.04 server.

The Biden Administration's recent executive order on cybersecurity aims to improve security assurance and the use of best practices. Transparency and project health are two factors that help to support security across the entire software industry—especially now. read more

Man pages were my go-to resource when I started exploring Linux. Certainly, man is the most frequently used command when a beginner starts getting familiar with the world of the command line. But man pages, with their extensive lists of options and arguments, can be hard to decipher, which makes it difficult to understand whatever you wanted to know. If you want an easier solution with example-based output, I think tldr is the best option. read more

Welcome to the 2021 Opensource.com summer reading list. This year's list contains eight wonderful book recommendations from members of the Opensource.com community. From classics like Frank Herbert's Dune and a new translation of Beowulf to non-fiction books about the history of tech industry culture, this list has books for readers with different tastes and interests.

In the very early days of DOS, the standard editor was a no-frills line editor called Edlin. Tim Paterson wrote the original Edlin for the first version of DOS, then called 86-DOS and later branded PC-DOS and MS-DOS. Paterson has commented that he meant to replace Edlin eventually, but it wasn't until ten years later that MS-DOS 5 (1991) replaced Edlin with Edit, a full-screen editor. read more

Classical computing is based on bits. Zeros and ones. This isn't because there's some inherent advantage to a binary logic system over logic systems with more states—or even over analog computers. But on-off switches are easy to make and, with modern semiconductor technology, we can make them very small and very cheap. read more

Redmine is a free and open-source project management application written in Ruby. In this post, we will show you how to install Redmine on Ubuntu 20.04 server.

Big wave surf legend and surfboard maker, Gary Linden talks the ocean, the internet and where humanity goes from here. The post Gary Linden, legendary surfer & Firefox fan appeared first on The Mozilla Blog.

Wind River has released Wind River Linux LTS21, advancing to Linux LTS 5.10, Yocto Project 3.3, and Qt 5.15.2. New features include a Linux Assembly Tool for image creation and a pre-built binary distribution. We last heard from Wind River in Feb. 2020 when the company released an unnamed version of Wind River Linux that […]

In 5 reasons to run Kubernetes on your Raspberry Pi homelab, I explain why you might want to use Kubernetes at home. Those reasons are relatively arbitrary, and they mostly focus on outcomes. Aside from what Kubernetes can do, there are several other good reasons to look at Kubernetes as an important next step in your personal computing experience. 1. It's built on the foundation of Linux read more