Fedora’s gaggle of desktops

There are 38 different desktops or window managers in Fedora 31. You could try a different one every day for a month, and still have some left over. Some have very few features. Some have so many features they are called a desktop environment. This article can’t go into detail on each, but it’s interesting to see the whole list in one place. To be on this list, the desktop must show up on the desktop manager’s selection list. If the desktop has more than one entry in the desktop manager list, they are counted just as that one desktop. An example is “GNOME”, “GNOME Classic” and “GNOME (Wayland).” These all show up on the desktop manager list, but they are still just GNOME.

Programming: 'DevOps', Caddyfile, GCC 8.4 RC and Forth

• A beginner's guide to everything DevOps

  While there is no single definition, I consider DevOps to be a process framework that ensures collaboration between development and operations teams to deploy code to production environments faster in a repeatable and automated way. We will spend the rest of this article unpacking that statement. The word "DevOps" is an amalgamation of the words "development" and "operations." DevOps helps increase the speed of delivering applications and services. It allows organizations to serve their customers efficiently and become more competitive in the market. In simple terms, DevOps is an alignment between development and IT operations with better communication and collaboration. DevOps assumes a culture where collaboration among the development, operations, and business teams is considered a critical aspect of the journey. It's not solely about the tools, as DevOps in an organization creates continuous value for customers. Tools are one of its pillars, alongside people and processes. DevOps increases organizations' capability to deliver high-quality solutions at a swift pace. It automates all processes, from build to deployment, of an application or a product.

• How to solve the DevOps vs. ITSM culture clash

  Since its advent, DevOps has been pitted against IT service management (ITSM) and its ITIL framework. Some say "ITIL is under siege," some ask you to choose sides, while others frame them as complementary. What is true is that both DevOps and ITSM have fans and detractors, and each method can influence software delivery and overall corporate culture.

• JFrog Launches JFrog Multi-Cloud Universal DevOps Platform

  DevOps technology company JFrog has announced its new hybrid, multi-cloud, universal DevOps platform called the JFrog Platform that drives continuous software releases from any source to any destination. By delivering tools in an all-in-one solution, the JFrog Platform aims to empower organizations, developers and DevOps engineers to meet increased delivery requirements. For the uninitiated, JFrog is the creator of Artifactory, the heart of the Universal DevOps platform for automating, managing, securing, distributing, and monitoring all types of technologies.

• New Caddyfile and more

  The new Caddyfile enables experimental HTTP3 support. Also I’ve added a few redirects to my new domain. All www prefix requests get redirected to their version without www prefix. My old domain nullday.de redirects now to my new domain shibumi.dev. Also I had to add connect-src 'self' to my CSP, because Google Lighthouse seems to have problems with defalt-src 'none'. If just default-src 'none' is being set, Google Lighthouse can’t access your robot.txt. This seems to be an issue in the Google Lighthouse implementation, the Google Search Bot is not affected.

• Content Addressed Vocabulary

  How can systems communicate and share meaning? Communication within systems is preceded by a form of meta-communication; we must have a sense that we mean the same things by the terms we use before we can even use them. This is challenging enough for humans who must share meaning, but we can resolve ambiguities with context clues from a surrounding narrative. Machines, in general, need a context more explicitly laid out for them, with as little ambiguity as possible. Standards authors of open-world systems have long struggled with such systems and have come up with some reasonable systems; unfortunately these also suffer from several pitfalls. With minimal (or sometimes none at all) adjustment to our tooling, I propose a change in how we manage ontologies.

• GCC 8.4 Release Candidate available from gcc.gnu.org

  The first release candidate for GCC 8.4 is available from
  
   https://gcc.gnu.org/pub/gcc/snapshots/8.4.0-RC-20200226/
   ftp://gcc.gnu.org/pub/gcc/snapshots/8.4.0-RC-20200226/
  
  and shortly its mirrors.  It has been generated from git commit
  r8-10091-gf80c40f93f9e8781b14f1a8301467f117fd24051.
  
  I have so far bootstrapped and tested the release candidate on
  x86_64-linux and i686-linux.  Please test it and report any issues to
  bugzilla.
  
  If all goes well, I'd like to release 8.4 on Wednesday, March 4th.
  

• GCC 8.4 RC Compiler Released For Testing

  GCC 8.4 will hopefully be released next week but for now a release candidate is available for testing the latest bug fixes in the mature GCC8 series. GCC 8.4 is aiming for release next week as potentially the last of the GCC8 series while GCC 9.3 is also coming soon. GCC 8.4 represents all of the relevant bug fixes over the past year for back-porting to users still on GCC 8. GCC 10 (in the form of version GCC 10.1) meanwhile as the next feature release should be out in the next month or two.

• Excellent Free Tutorials to Learn Forth

  Forth is an imperative stack-based programming language, and a member of the class of extensible interactive languages. It was created by Charles Moore in 1970 to control telescopes in observatories using small computers. Because of its roots, Forth stresses efficiency, compactness, flexible and efficient hardware/software interaction. Forth has a number of properties that contrast it from many other programming languages. In particular, Forth has no inherent keywords and is extensible. It is both a low level and high level language. It has the interesting property of being able to compile itself into a new compiler, debug itself and to experiment in real time as the system is built. Forth is an extremely flexible language, with high portability, compact source and object code, and a language that is easy to learn, program and debug. It has an incremental compiler, an interpreter and a very fast edit-compile-test cycle. Forth uses a stack to pass data between words, and it uses the raw memory for more permanent storage. It also lets coders write their own control structures. Forth has often being deployed in embedded systems due to the compactness of object code. Forth is also used in boot loaders such as Open Firmware (developed by Sun Microsystems) as well as scientific fields such as astronomy, mathematics, oceanography and electrical engineering.

Python Programming

• Adding Metadata to PDFs

  For both Django Crash Course and the forthcoming Two Scoops of Django 3.x, we're using a new process to render the PDFs. Unfortunately, until just a few days ago that process didn't include the cover. Instead, covers were inserted manually using Adobe Acrobat. [...] The lesson I learned writing this little utility is that as useful as Google and Stack Overflow might be, sometimes you need to explore reference manuals. Which, if you ask me, is a lot of fun. :-)

• A Week At A Time - Building SaaS #46

  In this episode, we worked on a weekly view for the Django app. We made navigation that would let users click from one week to the next, then fixed up the view to pull time from that particular week. The first thing that I did was focus on the UI required to navigate to a new weekly view in the app. We mocked out the UI and talked briefly about the flexbox layout that is available to modern browsers. From the UI mock up, I changed the view code to include a previous_week_date and next_week_date in the view context so we could change the links to show real dates. From there, we needed a destination URL. I create a new path in the URLconf that connected the weekly URL to the existing app view that shows the week data. After wiring things together, I was able to extract the week date from the URL and make the view pull from the specified day and show that in the UI. Finally, we chatted about the tricky offset calculation that needs to happen to pull the right course tasks, but I ended the stream at that stage because the logic changes for that problem are tedious and very specific to my particular app.

• Python 3.6.9 : Google give a new tool for python users.

  Today I discovered a real surprise gift made by the team from Google for the evolution of programmers. I say this because not everyone can afford hardware resources.

• Learn Python Dictionary Data Structure – Part 3

  In this Part 3 of Python Data Structure series, we will be discussing what is a dictionary, how it differs from other data structure in python, how to create, delete dictionary objects and methods of dictionary objects.

today's howtos

• What happens behind the scenes of a rootless Podman container?

• How to install MyPaint 2.0.0 on Ubuntu 18.04

• Amavisd crashes immediately on start with little in the logs

• Installing a Linux desktop on your Chromebook [VIDEO]

  Welcome to The Command Line. In case you missed the announcement, The Command Line is our brand new, ongoing series that explores Linux support, a.k.a. Crostini on Chrome OS. The inaugural post of this new series spurred a lot of great questions and conversation around the relatively new Chromebook feature and we believe that the potential that Linux apps bring to the table is much larger than many may realize. Because of that, we want to spend as much time as we can test the limits of Crostini to tap into that potential and help you get the most out of your Chromebook.

• Converting between uppercase and lowercase on the Linux command line

• Adding an additional terminal emulator in Linux

• Learn Pgrep and Pkill Command with Examples in Linux