Ubuntu - Operating System

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Ubuntu is a fork of Debian. Its main goal is to make easy to use Linux desktop. It provides stylish and intuitive user interface called Unity. All of the editions of Ubuntu share common infrastructure and software, making Ubuntu a unique platform that scales from consumer electronics to the desktop, and into the cloud for enterprise computing. It comes installed with a wide range of software. It supports 32 bit and 64 bit architecture.

boot2docker - Lightweight Linux for Docker

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Boot2Docker is a lightweight Linux distribution made specifically to run Docker containers. It runs completely from RAM, is a small ~38MB download and boots in ~5s (YMMV).Boot2Docker is currently designed and tuned for development. Using it for any kind of production workloads at this time is highly discouraged.

Minix - Operating System by Andrew S. Tanenbaum

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MINIX 3 is a free, open-source, operating system designed to be highly reliable, flexible, and secure. It is based on a tiny microkernel running in kernel mode with the rest of the operating system running as a collection of isolated, protected, processes in user mode.

Debian - The Universal Operating System

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Debian is a free operating system (OS) for your computer. An operating system is the set of basic programs and utilities that make your computer run. Debian provides more than a pure OS: it comes with over 29000 packages, precompiled software bundled up in a nice format for easy installation on your machine.

openSUSE - Linux for Open Minds

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The openSUSE project creates one of the world's best Linux distributions, working together in an open, transparent and friendly manner as part of the worldwide Free and Open Source Software community. It is aimed towards users and developers working on the desktop or server. It is great for beginners, experienced users and ultra geeks alike, in short, it is perfect for everybody. It comes with more than 1,000 open source applications.

CoreOS- Linux for Massive Server Deployments

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CoreOS is just Linux kernel + systemd. This is not for desktop PCs or Laptops or Tablets. It is meant to run the hundreds of thousands of servers. It is based on Google Chrome, that automatically updates itself every few weeks. It supports built in service discovery and configuration sharing using the Raft distributed consensus algorithm. CoreOS is made for companies building platforms.

termux-packages - Android terminal and Linux environment - packages repository.

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This project contains scripts and patches to build packages for the Termux Android application. Note that packages are cross compiled and that on-device builds are not currently supported. For most people the best way to obtain an environment for building packages is by using Docker. This should work everywhere Docker is supported (replace / with \ if using Windows) and ensures an up to date build environment that is tested by other package builders.

Zentyal - Linux Small Business Server

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Zentyal is a Linux Small Business Server, good alternative Windows Business Server. Zentyal can act as a Gateway, Infrastructure Manager, Unified Threat Manager, Office Server, Unified Communication Server or a combination of them. It is built on Ubuntu Linux distribution. This package includes LDAP server, Mail server, Firewall, Network infrastructure, VPN support, Web server, File server, Print server, FTP server, Groupware, VoIP server, Virtual Machines management and lot more.

awesome-linux - :penguin: A list of awesome projects and resources that make Linux even more awesome

We all know that Linux is awesome, but here's a list of especially awesome things related to the Linux ecosystem. You might also want to check awesome-c, awesome-shell, awesome-sysadmin, and awesome-security.

Distro Astro - Linux Distribution for Astronomers

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Distro Astro has features for almost all astronomy use—from observatories, planetariums, and professional researchers, to astrophotographers and amateur enthusiasts. The INDI Library built into Distro Astro provides telescope control for the most common telescopes from Meade, Celestron, Orion, and other major telescope brands. Nightshade is an advanced planetarium software for fish-eye dome projections developed by planetarium provider Digitalis Education.

Tails - Live operating system which preserves privacy and anonymity

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Tails is a live system that aims to preserve your privacy and anonymity. It helps you to use the Internet anonymously and circumvent censorship almost anywhere you go and on any computer but leaving no trace unless you ask it to explicitly. Tails relies on the Tor anonymity network to protect your privacy online. It encrypt and sign your emails and documents using the de facto standard OpenPGP either from Tails email client, text editor or file browser.

Raspbian - Operating System for Raspberry Pi hardware

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Raspbian is a free operating system based on Debian optimized for the Raspberry Pi hardware. An operating system is the set of basic programs and utilities that make your Raspberry Pi run. However, Raspbian provides more than a pure OS: it comes with over 35,000 packages, pre-compiled software bundled in a nice format for easy installation on your Raspberry Pi.

Yocto Project - Create Custom Linux Distribution

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The Yocto Project is an open source collaboration project that provides templates, tools and methods to help you create custom Linux-based systems for embedded products regardless of the hardware architecture. It's a complete embedded Linux development environment with tools, metadata, and documentation - everything you need.

RancherOS - Tiny Linux distro that runs the entire OS as Docker containers

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RancherOS is a minimalist Linux distribution perfect for running Docker containers. It runs Docker directly on top of the kernel and delivers Linux services as containers. It includes only the services needed to run Docker. RancherOS reduces the hassle with updating, patching, and maintaining your container host operating system.

Bodhi Linux - The Enlightened Linux Distribution

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Bodhi Linux is a Linux-based operating system based upon two things Minimalism, Enlightenment desktop. It provides you a base system that is functional but not bloated. Bodhi’s default application set takes up less than 10MB of space in total.

LinHES - Linux Home Entertainment System

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LinHES (Linux Home Entertainment System) is a Linux distribution that centers around MythTV. The goal of this project is to make creating and maintaining a Home Theater PC as simple as possible. It provides you with the knowledge needed to assemble your very own settop box using Linux. It supports PVR, Jukebox, Image viewer, Game station, View images, Watching & recording television and lot more.

Manjaro - User-friendly Linux Distribution

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Manjaro is a user-friendly Linux distribution based on the independently developed Arch operating system. Arch itself is renowned for being an exceptionally fast, powerful, and lightweight distribution that provides access to the very latest cutting edge – and bleeding edge – software. However, Arch is also aimed at more experienced or technically-minded users. Manjaro provides all the benefits of the Arch operating system combined with a focus on user-friendliness and accessibility.

Tails - Live Operating System supports Privacy and Anonymity

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Tails is a live operating system, that you can start on almost any computer from a DVD, USB stick, or SD card. It aims at preserving your privacy and anonymity, and helps you to use the Internet anonymously and circumvent censorship. All connections to the Internet are forced to go through the Tor network. It leaves no trace on the computer you are using unless you ask it explicitly. It uses cryptographic tools to encrypt your files, emails and instant messaging.

PLD - PLD Linux Distribution

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PLD is a free, RPM-based Linux distribution, aimed at the more advanced users and administrators, who accept the tradeoffs of using a system, that might require manual tweaking in exchange for much flexibility. PLD kernels are build using modules. You are free to pick which modules to load depending on hardware you want to use. It supports Easy package management, Multiple desktop environments and lot more.

Nachos - Instructional Operating System

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Nachos is instructional software for teaching undergraduate, and potentially graduate, level operating systems courses. The assignments illustrate and explore all areas of modern operating systems, including threads and concurrency, multiprogramming, system calls, virtual memory, software-loaded TLB's, file systems, network protocols, remote procedure call, and distributed systems.