How to Install and Configure Git on AlmaLinux 8

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VirtualBox 6.1.28 Released with Initial Support for Linux 5.14 and 5.15

VirtualBox 6.1.28 is here, about three months after VirtualBox 6.1.26, to introduce initial guest and host support for the Linux 5.14 and 5.15 kernel series. This means that you can now use VirtualBox on GNU/Linux systems powered by Linux kernels 5.14 or 5.15, as well as to run distributions powered by Linux 5.14 or 5.15 kernels inside virtual machines.

In addition, this release introduces initial support for the upcoming Red Hat Enterprise Linux 8.5 operating system, improves the detection of kernel modules in Linux hosts to prevent unnecessary rebuilds, fixes a display corruption on Linux Mint systems, and adds bindings support for Python 3.9.

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Bash String Manipulation Explained With Examples In Linux

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Ubuntu 22.04 LTS Codename Has Been Revealed and It’s Dangerous Hot

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The 5 Best Remote Desktop Clients for Linux

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31 Best Linux Performance Monitoring Tools

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Linux Kernel Concurrency Cheat Sheet

Navigating Linux kernel APIs can be very time-consuming, so Linux ksplice guru Vegard Nossum put together a very handy time-saving cheat sheet to help traversing Linux kernel concurrency primitives.

As a child, I spent countless hours playing games on my Nintendo Game Boy. As I grew older and started programming in QBasic on MS-DOS, I also got curious about how Game Boy games worked.

At that time, I didn’t yet have an Internet connection at home, but I spent a lot of time at my parents’ workplaces after school, where I had access to the Internet. I would frequently bring stacks of floppies and load them up with anything I could download — QBasic programs, shareware, and all the programming tutorials and documentation I could find.

One of the things I found was the “Nintendo GameBoy Crib Sheet” by Justin “Otaku No” Lloyd. The Crib Sheet is a 4-page document, meant to be printed, that is packed with information about Game Boy assembly programming — instructions, opcodes, memory maps, IO registers, etc. At the time, I didn’t really understand a lot of it, but I marveled at it and treasured it.

My dad worked at a printing business, so he had the equipment to print the Crib Sheet in A3 (roughly “Tabloid/Ledger” in US paper sizes), two-sided and in color, and laminate it.

I eventually learned how to program the Game Boy, largely helped by my printed and laminated Crib Sheet.

Since then, I’ve had a bit of a soft spot for cheat sheets. They’re not for everybody, and that’s fine. To me, there is something magical about seeing the essence of something distilled down to a tightly packed overview that fits in your hands.

That’s why I decided to make one for Linux kernel concurrency primitives (click on the preview to download the PDF):

In some places, you’ll see some circled, colored number references. Those refer to potential variants of a function, and the variants are usually listed just below the table of functions.

This cheat sheet is necessarily incomplete — Linux kernel APIs are too numerous and diverse to be able to include every detail. I consider the cheat sheet to be a handy reference and a good starting point for exploring the APIs.

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Devuan 4.0 ‘Chimaera’ Systemd-Free Distro Released

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Ubuntu Unity 21.10 Released to Keep the Unity7 Desktop Alive in 2021

Ubuntu Unity 21.10 arrived today as part of the upcoming Ubuntu 21.10 “Impish Indri” release, but Ubuntu Unity still doesn’t have the “official flavor” status. However, that shouldn’t stop you from using this great distribution on your personal computer if you still want to use the Unity desktop environment in 2021.

This release still uses the old Unity7 interface rather than the upcoming UnityX 10 desktop that the Ubuntu Unity team is developing as its successor. UnityX 10 will have new and updated indicators and the migration of the glib-2.0 schemas to gsettings-ubuntu-schemas.

Learn more about this release and how it works with Unity7 here.

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