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Programming Leftovers

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Development
  • Santa is pseudo packaging | Playing Perl 6␛b6xA Raku

    Santa needs to know where all the chimneys are. Thanks to schedule constraints, a single subroutine call has to do to query multies defined in a bunch of modules.

  • Development community that we can see to development of Perl Part1 - C language specification creating group | Yuki Kimoto Perl Blog

    The Perl core team seems to be looking for resources to help in language development.

    Currently, it seems the material in python.

    perlgov: the perl governance document

    I feel that Perl and Python cultures are quite different.

    It's also based on an improvised document in 2019 when the Python reader quit.

    I can understand how envious we are when we see Python attracting users(although
    I'm watching a lot of cheating at the same time).

    On the other hand Perl has long been a conservative culture.

    So, we can refer to the methods used by developers of languages, operating systems and tools that also have a conservative mindset.

    The first thing I would like us to refer to is the method used by the group that creates C language specifications.

  • Everything You Need to Know About Bash For Loops in Linux

    A bash script is simply a plain text file containing a series of commands that the bash shell can read and execute. Bash is the default shell in pre-Catalina macOS, and most Linux distributions.

    If you’ve never worked with a shell script before, you should begin with the absolute simplest case. This will allow you to practice key concepts including the creation of the script and its execution.

  • Re-format blah,YYYYMMDD,blah as blah,YYYY,MM,DD,blah

    This exercise was inspired by a recent article by Girish Managoli. He showed how to prepare a data table for machine learning using simple shell tools.

  • The 20 Best Matlab Books For Beginner and Expert Developers [Ed: Better to use GNU Octave, which is Free software and similar]

    MATLAB is short for Matrix Laboratory. MATLAB is the simplest and most profitable computing climate for researchers, scientists, and engineers. It incorporates the MATLAB language, the main programming language devoted to numerical and specialized computing. You can utilize MATLAB for a scope of utilizations, including Artificial Intelligence, signal preparing and interchanges, picture and video handling, deep learning, control frameworks, test and estimation, and computational science. Thus, in this modern era, it has become very crucial to learn MatLab, and for the appropriate guidance, an adequate set of MatLab books is inevitably important.

  • Why I love Emacs

    I'm a habitual Emacs user. I didn't choose Emacs as much as it chose me. Back when I was first learning about Unix, I stumbled upon a little-known feature in a strange application called Emacs, which was apparently hidden away on my computer. Legend had it (and was proven true) that if you typed emacs into a terminal, pressed Alt+X, and typed tetris, you could play a falling-blocks game.

    [...]

    That was my introduction to GNU Emacs. While it was frivolous, it was also an accurate indication of what Emacs is all about—the idea that users can reprogram their (virtual) worlds and do whatever they want with an application. Playing Tetris in your text editor is probably not your primary goal on an everyday basis, but it goes to show that Emacs is, proudly, a programming platform. In fact, you might think of it as a kind of precursor to Jupyter, combining a powerful programming language (called elisp, to be exact) with its own live environment. As a consequence, Emacs is flexible as a text editor, customizable, and powerful.

    Elisp (and Common Lisp, by extension) aren't necessarily the easiest languages to start out on, if you're used to Bash or Python or similar languages. But LISP dialects are powerful, and because Emacs is a LISP interpreter, you can build applications, whether they're Emacs plugins or prototypes of something you want to develop into a stand-alone project. The wildly popular org-mode project is just one example: it's an Emacs plugin as well as a markdown syntax with mobile apps to interpret and extend its capabilities. There are many examples of similarly useful applications-within-Emacs, including an email client, a PDF viewer, web browser, a shell, and a file manager.

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.