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Programming: Perl, Python, Java and JavaScript

  • Perl Weekly Challenge 61: Max Subarray Product and IP Address Partition

    These are some answers to the Week 61 of the Perl Weekly Challenge organized by Mohammad S. Anwar.

  • Dataquest: New Course: NumPy for Data Engineers

    We've just launched a new interactive online course that'll take you from zero to pro with NumPy in the context of data engineering — dive in!

  • Switch A Django Project To Use Pytest - Building SaaS #57

    In this episode, I replaced the default Django test runner to use pytest. We walked through installation, configuration, how to change tests, and the benefits that come from using pytest.

    We started by looking at the current state of the test suite to provide a baseline to compare against. After that, I went to PyPI to find the version of pytest-django that we wanted to install. I added the package to my requirements-dev.txt and installed the update.

  • Oracle’s Linux Team Wishes the Java Community a Happy 25th

    From one open source community to another, Oracle’s Linux team would like to congratulate the Java community on its 25th anniversary! Java has an impressive history. It was a breakthrough in programming languages, allowing developers to write once and have code run anywhere. And, it has enabled developers to create a myriad of innovative solutions that help run our world. Read Georges Saab’s post to learn more.

    Both open source technologies, Java and Linux benefit from communities that collectively drive their advancements. While the technologies aren’t similar, there are areas where both work together and complement each other.

    One area is Java’s support for Linux HugePages. Using Linux HugePages can improve system performance by reducing the amount of resources needed to manage memory. The result of less overhead in the system means more resources are available for Java and the Java app, which can make both run faster.

  • New Training Course Advances Knowledge to Encourage Node.js Application Development Careers

    LFW211, developed in conjunction with the OpenJS Foundation, is geared toward developers who wish to master and demonstrate Node.js specialization, in particular for creating Node.js applications. The course provides core skills for effectively harnessing a broad range of Node.js capabilities at depth, equipping developers with rigorous foundational skills and knowledge that will translate to building any kind of Node.js application or library.

Java programming language celebrates 25 years

  • Java programming language celebrates 25 years

    The Java programming language celebrates its silver anniversary this week, with May 23, 2020, marking 25 years from the day Sun Microsystems first introduced Java to the world. The venerable language has remained popular with enterprises even as a slew of rival languages, such as Python and Go, now compete for the hearts and minds of software developers. But Java is not standing still, with a revamp designed to address longtime pain points now in the offing.

    Arising out of the “Oak” project begun in 1991 and spearheaded by James Gosling, object-oriented Java gained fame for its “write once, run anywhere” portability, as the Java Virtual Machine supported multiple hardware platforms and operating systems, and Java applets could be run from a webpage. Java applets offered better performance than JavaScript for many years, but eventually fell out of favor with browser makers and were removed from Java in 2018.

Linux Foundation Launches Node.js Application Development Course

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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.