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Programming Leftovers

Submitted by Roy Schestowitz on Sunday 30th of May 2021 12:21:36 PM Filed under
Development

  • Patterns in Functional Programming

    O’Neill’s paper was published as a Functional Pearl in the Journal of Functional Programming, when Richard Bird was the handling editor for Pearls. The paper includes an epilogue that presents a purely list-based implementation of the Genuine Sieve, contributed by Bird during the editing process. And the same program pops up in Bird’s textbook Thinking Functionally with Haskell (TFWH). This post is about Bird’s program.

  • GCC Rust Front-End Continues Advancing With Plans To Eventually Upstream - Phoronix

    While the official/reference Rust compiler implementation is LLVM-based, there continues to be the independent effort working on a GCC Rust front-end as an alternative full implementation of the Rust programming language.

    The GCC front-end for Rust continues advancing as an alternative compiler moving forward for Rust code though at the moment isn't feature complete or close to it for major features.

  • 4 Excellent Free Tutorials to Learn LabVIEW - LinuxLinks

    LabVIEW is a graphical programming language used by professional scientists and engineers as well as students, hobbyists and makers. It was designed to enable domain experts to build power systems quickly without getting bogged down in subsystem minutia.

    LabVIEW has powerful features for simulation, control and DAQ applications.

    Programs are called virtual instruments, or VIs, because their appearance and operation often imitate physical instruments, such as oscilloscopes and multimeters. LabVIEW contains a comprehensive set of tools for acquiring, analyzing, displaying, and storing data, as well as tools to help you troubleshoot the code you write.

  • [Older] Understanding default parameters

    Many times, we may pass certain parameters from the command line, but, sometimes, we may not pass any parameters at all. We may need to initialize certain default values to certain variables.

  • [Older] Understanding getopts - Linux Concept

    Command-line parameters passed along with commands are also called positional parameters. Many times, we need to pass options such as -f and -v along with a positional parameter.

    Let’s look at an example for passing the -x or-y options along with commands.

  • [Older] Command-line arguments in Linux shell - Linux Concept
  • [Older] Working with arrays - Linux Concept

    An array is a list of variables. For example, we can create an array called FRUIT, which will contain the names of many fruits. The array does not have a limit on how many variables it may contain. It can contain any type of data.

»

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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.

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