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Programming Leftovers

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  • A Lasting Legacy: Thoughts on COBOL

    Today, COBOL is usually either the butt of cruel jokes or a mythical concept in programmer lore, the story usually being that a COBOL guru is rushed in by a massive corporation to write a few lines of program code in exchange for tremendous amounts of money, saving the world from a bug that's just been waiting to happen since some time in 1967. Unlike many other old languages like Assembler, LISP, C, BASIC and Pascal, COBOL seems to stand for itself in discussions about software development. To many developers, it's an afterthought - so much so that when Jonathan Blow cooks up doomsday scenarios, it's a fictional lack of C programmers that threatens civilization rather than most IT professionals' complete disinterest in COBOL - the language that runs both their bank accounts and their airline bookings to Very Important Conferences.

    Why is that, exactly?

  • Introduction to Recurrent Neural Networks

    Recurrent Neural Networks, This is a follow-up to one of our previous posts, which you can read here if you missed it.

    Let’s look into Recurrent Neural Networks and the different types of issues that they may handle. RNN is a deep learning technique that attempts to overcome the difficulty of modeling sequential data.

  • GCC 12 Compiler Squaring Away Its AVX-512 FP16 Support - Phoronix

    In recent weeks the AVX-512 FP16 support has been landing within the GNU Compiler Collection codebase for next year's GCC 12 release.

    This summer Intel posted public documentation around AVX-512 FP16 that allows for full-speed handling of FP16 values compared to the existing AVX-512 support for larger data types. Intel is adding AVX-512 FP16 to future Xeon processors (seemingly with Sapphire Rapids) to help with machine learning workloads and other cases where half-precision floating point numbers are sufficient and this will allow for greater performance.

  • Learn Python Functions – TecAdmin

    While programming we often perform the same task repeatedly, such as performing the addition of numbers or printing the same statement with different inputs. These are general examples, but for these would you rather write the same code 10 times or just once?

    That’s the purpose of functions, they’re pieces of code only defined once for a particular task and come with reusable functionality so that users can call them whenever they want to perform a task. This makes your program understandable and debugging easier.

    Sometimes functions require some input and sometimes they may or may not return some value, but all of these vary from function to function and the task assigned to that specific function. In Python, functions are essential parts that may be user-defined or built-in. In this article, we’ll discuss functions in Python, types of functions, how to define them along examples for your better understanding.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.