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Programming: GNU C Library, Ruby, Python and Bash

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  • Huawei Contributes Some Glibc AArch64 Performance Optimizations

    Huawei isn't known as much of an upstream contributor to the GNU toolchain and as far as GNU C Library (glibc) commits go prior to Thursday had just authored three patches from a Huawei emailing address. But that count more than doubled thanks to some optimizations they have successfully landed upstream.

    Huawei has contributed optimized implementations of strlen_asimd, memrchr, strnlen, strcpy, and memcpy for Glibc's AArch64 (64-bit ARM) code that stands to benefit for all modern Arm SoCs and just not Huawei hardware. For strcpy it's possible to be 5~18% faster, strnlen in the range of 11~24% for longer strings, and other optimized functions in the range of upper single digit percentages to around ~20% in best case scenarios.

  • Top 50 Frequently Asked Ruby Interview Questions and Answers

    Ruby is a modern-day programming language developed in Japan around the 90s. This high-level language is intended for general-purpose software development. Ruby gained immense popularity during the transition of websites to web apps. It fuels the first generation of these apps due to its high-scalability and robust feature set. Even after the JS boom, Ruby is still enjoying increasing demand. Companies often seek developers fluent in Ruby and Rails, Ruby’s flagship web framework for maintaining their existing products and adding new functionalities. So, it’s essential to know common ruby interview questions if you want to grab a Ruby job.

  • Python 3.8.1, 3.7.6, 3.6.10, and 3.9.0a2 are now available!

    On behalf of the entire Python development community, and the currently serving Python release team in particular, I'm pleased to announce the unprecedented combined release of no less than four versions of Python. Let's dig in!


    Python 3.9 is still in development. This releasee, 3.9.0a2 is the second of six planned alpha releases. Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process. During the alpha phase, features may be added up until the start of the beta phase (2020-05-18) and, if necessary, may be modified or deleted up until the release candidate phase (2020-08-10). Please keep in mind that this is a preview release and its use is not recommended for production environments.

  • How To Automate Directory Database And Website Backup Using Bash

    If there is anything that makes Linux a great server OS when it comes to maintenance, it is scripting.

    Be it simple bash scripting, python or perl, it’s awesome when you can automate boring repetitive tasks, knowing that the system will handle everything perfectly.

    From creating database dumps, syncing filesystem backups, to automating application installations, scripting is present everywhere in Linux.

    In this tutorial, we will cover the basics of bash scripting, enabling you to write your own bash scripts you can use to make your life easier. Also checkout how to write bash functions.

  • Msot popele can undreatnsd tihs setennce

    I wrote about this particular kind of text garbling five years ago on the Linux Rain website. For some background, see the last section of this post.

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.