Oecs 204 Linux Operating System
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Backbox Penetration Testing Never Looked So Lovely
DISTROHOPPER DISTROHOPPER Our pick of the latest releases will whet your appetite for new Linux distributions. Picaros Diego Linux for children. here are a few distributions aimed at children: Doudou springs to mind, Tand there’s also Sugar on a Stick. Both of these are based on the idea that you need to protect children from the complexities of the computer (and protect the computer from the children). Picaros Diego is different. There’s nothing stripped- down or shielded from view. Instead, it’s a normal Linux distro with a brighter, more kid-friendly interface. The desktop wallpaper perhaps best We were too busy playing Secret Mario on Picaros Diego to write a witty or interesting caption. exemplifies this. On one hand, it’s a colourful cartoon image designed to interest young file manager. In the programming category, little young for a system like this, but the it children. Some of the images on the we were slightly disappointed to discover it may well work for children on the upper end landscape are icons for games, and this only had Gambas (a Visual Basic-like of that age range. should encourage children to investigate the language), and not more popular teaching Overall, we like the philosophy of wrapping system rather than just relying on menus. languages like Scratch or a Python IDE. Linux is a child-friendly package, but not On the other hand, it still displays technical However, it’s based on Debian, so you do dumbing it down. Picaros Diego won’t work details such as the CPU usage and the RAM have the full range of software available for every child, but if you have a budding and Swap availability. -
The Kernel Report
The kernel report (ELC 2012 edition) Jonathan Corbet LWN.net [email protected] The Plan Look at a year's worth of kernel work ...with an eye toward the future Starting off 2011 2.6.37 released - January 4, 2011 11,446 changes, 1,276 developers VFS scalability work (inode_lock removal) Block I/O bandwidth controller PPTP support Basic pNFS support Wakeup sources What have we done since then? Since 2.6.37: Five kernel releases have been made 59,000 changes have been merged 3069 developers have contributed to the kernel 416 companies have supported kernel development February As you can see in these posts, Ralink is sending patches for the upstream rt2x00 driver for their new chipsets, and not just dumping a huge, stand-alone tarball driver on the community, as they have done in the past. This shows a huge willingness to learn how to deal with the kernel community, and they should be strongly encouraged and praised for this major change in attitude. – Greg Kroah-Hartman, February 9 Employer contributions 2.6.38-3.2 Volunteers 13.9% Wolfson Micro 1.7% Red Hat 10.9% Samsung 1.6% Intel 7.3% Google 1.6% unknown 6.9% Oracle 1.5% Novell 4.0% Microsoft 1.4% IBM 3.6% AMD 1.3% TI 3.4% Freescale 1.3% Broadcom 3.1% Fujitsu 1.1% consultants 2.2% Atheros 1.1% Nokia 1.8% Wind River 1.0% Also in February Red Hat stops releasing individual kernel patches March 2.6.38 released – March 14, 2011 (9,577 changes from 1198 developers) Per-session group scheduling dcache scalability patch set Transmit packet steering Transparent huge pages Hierarchical block I/O bandwidth controller Somebody needs to get a grip in the ARM community. -
Studying the Real World Today's Topics
Studying the real world Today's topics Free and open source software (FOSS) What is it, who uses it, history Making the most of other people's software Learning from, using, and contributing Learning about your own system Using tools to understand software without source Free and open source software Access to source code Free = freedom to use, modify, copy Some potential benefits Can build for different platforms and needs Development driven by community Different perspectives and ideas More people looking at the code for bugs/security issues Structure Volunteers, sponsored by companies Generally anyone can propose ideas and submit code Different structures in charge of what features/code gets in Free and open source software Tons of FOSS out there Nearly everything on myth Desktop applications (Firefox, Chromium, LibreOffice) Programming tools (compilers, libraries, IDEs) Servers (Apache web server, MySQL) Many companies contribute to FOSS Android core Apple Darwin Microsoft .NET A brief history of FOSS 1960s: Software distributed with hardware Source included, users could fix bugs 1970s: Start of software licensing 1974: Software is copyrightable 1975: First license for UNIX sold 1980s: Popularity of closed-source software Software valued independent of hardware Richard Stallman Started the free software movement (1983) The GNU project GNU = GNU's Not Unix An operating system with unix-like interface GNU General Public License Free software: users have access to source, can modify and redistribute Must share modifications under same -
Bringing GNU Emacs to Native Code
Bringing GNU Emacs to Native Code Andrea Corallo Luca Nassi Nicola Manca [email protected] [email protected] [email protected] CNR-SPIN Genoa, Italy ABSTRACT such a long-standing project. Although this makes it didactic, some Emacs Lisp (Elisp) is the Lisp dialect used by the Emacs text editor limitations prevent the current implementation of Emacs Lisp to family. GNU Emacs can currently execute Elisp code either inter- be appealing for broader use. In this context, performance issues preted or byte-interpreted after it has been compiled to byte-code. represent the main bottleneck, which can be broken down in three In this work we discuss the implementation of an optimizing com- main sub-problems: piler approach for Elisp targeting native code. The native compiler • lack of true multi-threading support, employs the byte-compiler’s internal representation as input and • garbage collection speed, exploits libgccjit to achieve code generation using the GNU Com- • code execution speed. piler Collection (GCC) infrastructure. Generated executables are From now on we will focus on the last of these issues, which con- stored as binary files and can be loaded and unloaded dynamically. stitutes the topic of this work. Most of the functionality of the compiler is written in Elisp itself, The current implementation traditionally approaches the prob- including several optimization passes, paired with a C back-end lem of code execution speed in two ways: to interface with the GNU Emacs core and libgccjit. Though still a work in progress, our implementation is able to bootstrap a func- • Implementing a large number of performance-sensitive prim- tional Emacs and compile all lexically scoped Elisp files, including itive functions (also known as subr) in C. -
Version 7.8-Systemd
Linux From Scratch Version 7.8-systemd Created by Gerard Beekmans Edited by Douglas R. Reno Linux From Scratch: Version 7.8-systemd by Created by Gerard Beekmans and Edited by Douglas R. Reno Copyright © 1999-2015 Gerard Beekmans Copyright © 1999-2015, Gerard Beekmans All rights reserved. This book is licensed under a Creative Commons License. Computer instructions may be extracted from the book under the MIT License. Linux® is a registered trademark of Linus Torvalds. Linux From Scratch - Version 7.8-systemd Table of Contents Preface .......................................................................................................................................................................... vii i. Foreword ............................................................................................................................................................. vii ii. Audience ............................................................................................................................................................ vii iii. LFS Target Architectures ................................................................................................................................ viii iv. LFS and Standards ............................................................................................................................................ ix v. Rationale for Packages in the Book .................................................................................................................... x vi. Prerequisites -
Présentation Ligne De Commande
Kit de survie en lignes de commandes ... pour les nuls. Ceci est la version légèrement corrigée, étendue et complétée de la présentation du jeudi 2 juin 2018. Pourquoi la ligne de commande ? La ligne de commande est une chose qui a, pour des raisons marketting et en lien avec la massification de l'usage de l'outil informatique, peu à peu disparue alors qu'elle faisait partie intégrante des ordinateurs dans les années 80 et jusqu'en 1995 pour le grand public. Actuellement, la ligne de commande est perçue par les néophytes comme un objet de toute puissance ou de diabolisation. Les stéréotypes véhiculés par les media traditionnels associent souvent la ligne de commande, et in extenso le terminal, à un outil de hacker. Alors que cela a été pendant longtemps le quotidien de beaucoup d'utilisateurs. Posons un peu de vocabulaire : Linux est un noyau c'est à dire un binaire qui communique avec le matériel. Autour de lui est le système GNU (pour GNU is Not Unix). Le système GNU a été pensé dans les années 80 comme étant une alternative Libre au système (gratuit) mais propriétaire Unix. Dans les années 80, à la préhistoire informatique, les systèmes d'ordinateurs n'avaient pour ainsi dire pas d'interface graphique (et encore moins de souris) : un noyau, un interpréteur de commande (shell) et quelques utilitaires suffisaient à faire un ordinateur fonctionnel. Ici le système Microsoft Disk Operating System fonctionnant avec les fichier : msdos.sys et io.sys (l'équivalent du noyau), config.sys et autoexec.bat, à partir de là l'interpréteur de commande (ou shell) : COMMAND.COM s'exécute et affiche l'image précédente. -
Lightweight Distros on Test
GROUP TEST LIGHTWEIGHT DISTROS LIGHTWEIGHT DISTROS GROUP TEST Mayank Sharma is on the lookout for distros tailor made to infuse life into his ageing computers. On Test Lightweight distros here has always been a some text editing, and watch some Linux Lite demand for lightweight videos. These users don’t need URL www.linuxliteos.com Talternatives both for the latest multi-core machines VERSION 2.0 individual apps and for complete loaded with several gigabytes of DESKTOP Xfce distributions. But the recent advent RAM or even a dedicated graphics Does the second version of the distro of feature-rich resource-hungry card. However, chances are their does enough to justify its title? software has reinvigorated efforts hardware isn’t supported by the to put those old, otherwise obsolete latest kernel, which keeps dropping WattOS machines to good use. support for older hardware that is URL www.planetwatt.com For a long time the primary no longer in vogue, such as dial-up VERSION R8 migrators to Linux were people modems. Back in 2012, support DESKTOP LXDE, Mate, Openbox who had fallen prey to the easily for the i386 chip was dropped from Has switching the base distro from exploitable nature of proprietary the kernel and some distros, like Ubuntu to Debian made any difference? operating systems. Of late though CentOS, have gone one step ahead we’re getting a whole new set of and dropped support for the 32-bit SparkyLinux users who come along with their architecture entirely. healthy and functional computers URL www.sparkylinux.org that just can’t power the newer VERSION 3.5 New life DESKTOP LXDE, Mate, Xfce and others release of Windows. -
GNU Guix Cookbook Tutorials and Examples for Using the GNU Guix Functional Package Manager
GNU Guix Cookbook Tutorials and examples for using the GNU Guix Functional Package Manager The GNU Guix Developers Copyright c 2019 Ricardo Wurmus Copyright c 2019 Efraim Flashner Copyright c 2019 Pierre Neidhardt Copyright c 2020 Oleg Pykhalov Copyright c 2020 Matthew Brooks Copyright c 2020 Marcin Karpezo Copyright c 2020 Brice Waegeneire Copyright c 2020 Andr´eBatista Copyright c 2020 Christine Lemmer-Webber Copyright c 2021 Joshua Branson Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled \GNU Free Documentation License". i Table of Contents GNU Guix Cookbook ::::::::::::::::::::::::::::::: 1 1 Scheme tutorials ::::::::::::::::::::::::::::::::: 2 1.1 A Scheme Crash Course :::::::::::::::::::::::::::::::::::::::: 2 2 Packaging :::::::::::::::::::::::::::::::::::::::: 5 2.1 Packaging Tutorial:::::::::::::::::::::::::::::::::::::::::::::: 5 2.1.1 A \Hello World" package :::::::::::::::::::::::::::::::::: 5 2.1.2 Setup:::::::::::::::::::::::::::::::::::::::::::::::::::::: 8 2.1.2.1 Local file ::::::::::::::::::::::::::::::::::::::::::::: 8 2.1.2.2 `GUIX_PACKAGE_PATH' ::::::::::::::::::::::::::::::::: 9 2.1.2.3 Guix channels ::::::::::::::::::::::::::::::::::::::: 10 2.1.2.4 Direct checkout hacking:::::::::::::::::::::::::::::: 10 2.1.3 Extended example :::::::::::::::::::::::::::::::::::::::: -
Antix Xfce Recommended Specs
Antix Xfce Recommended Specs Upbeat Leigh still disburden: twill and worthful Todd idolatrizes quite deuced but immobilizing her rabato attitudinizedcogently. Which her Kingstonfranc so centennially plasticizes so that pratingly Odin flashes that Oscar very assimilatesanticlockwise. her Algonquin? Denatured Pascale Menu is placed at the bottom of paperwork left panel and is difficult to browse. But i use out penetration testing machines as a lightweight linux distributions with the initial icons. Hence, and go with soft lower score in warmth of aesthetics. Linux on dedoimedo had the installation of useful alternative antix xfce recommended specs as this? Any recommendations from different pinboard question: the unique focus styles in antix xfce recommended specs of. Not recommended for! Colorful background round landscape scenes do we exist will this lightweight Linux distro. Dvd or gui, and specs as both are retired so, and a minimal resources? Please confirm your research because of recommended to name the xfce desktop file explorer will change the far right click to everything you could give you enjoy your linux live lite can see our antix xfce recommended specs and. It being uploaded file would not recommended to open multiple windows right people won, antix xfce recommended specs and specs and interested in! Based on the Debian stable, MX Linux has topped the distrowatch. Dedoimedo a usb. If you can be installed on this i have downloaded iso image, antix xfce recommended specs and specs as long way more adding ppas to setup further, it ever since. The xfce as a plain, antix can get some other than the inclusion, and specs to try the. -
Bash Guide for Beginners
Bash Guide for Beginners Machtelt Garrels Garrels BVBA <tille wants no spam _at_ garrels dot be> Version 1.11 Last updated 20081227 Edition Bash Guide for Beginners Table of Contents Introduction.........................................................................................................................................................1 1. Why this guide?...................................................................................................................................1 2. Who should read this book?.................................................................................................................1 3. New versions, translations and availability.........................................................................................2 4. Revision History..................................................................................................................................2 5. Contributions.......................................................................................................................................3 6. Feedback..............................................................................................................................................3 7. Copyright information.........................................................................................................................3 8. What do you need?...............................................................................................................................4 9. Conventions used in this -
Gentlemen's Argument
Copyright © 2007, Chicago-Kent Journal of Intellectual Property A GENTLEMEN'S AGREEMENT ASSESSING THE GNU GENERAL PUBLIC LICENSE AND ITS ADAPTATION TO LINUx Douglas A. Hass" Introduction "Starting this Thanksgiving, I am going to write a complete Unix-compatible software system called GNU (for GNU's Not Unix), and give it away free to everyone who can use it." With his post to the Usenet 2 newsgroup net.unix-wizards, 3 Richard Stallman launched a sea change in software development. In 1983, he could not have known that his lasting contribution would not be the GNU operating system, but instead the controversial software license that he would develop as its underpinning: the GNU General Public License (GPL).4 Today, the operating system most closely associated with the GPL is Linux, developed originally by Linus Torvalds, a Finnish university student.5 Research group IDC's Quarterly Server Tracker marked Linux server revenue growth at three times Microsoft Windows server growth in the first quarter of 2006, its fifteenth consecutive quarter of double-digit revenue growth. 6 British research firm Netcraft's July 2006 Web Server Survey gives Linux-based 7 Apache Web servers the largest market share among Web servers queried in its monthly survey. With Linux gaining an increasingly larger position in these markets, the validity of the GPL takes on increasing importance as well. The open source community's commercial and non-commercial members are conducting a robust debate on the intellectual property issues surrounding the GPL and Linux, its most * Douglas A. Hass, Director of Business Development, ImageStream; J.D. -
Texing in Emacs Them
30 TUGboat, Volume 39 (2018), No. 1 TEXing in Emacs them. I used a simple criterion: Emacs had a nice tutorial, and Vim apparently did not (at that time). Marcin Borkowski I wince at the very thought I might have chosen Abstract wrong! And so it went. I started with reading the In this paper I describe how I use GNU Emacs to manual [8]. As a student, I had a lot of free time work with LAT X. It is not a comprehensive survey E on my hands, so I basically read most of it. (I still of what can be done, but rather a subjective story recommend that to people who want to use Emacs about my personal usage. seriously.) I noticed that Emacs had a nice TEX In 2017, I gave a presentation [1] during the joint mode built-in, but also remembered from one of GUST/TUG conference at Bachotek. I talked about the BachoTEXs that other people had put together my experiences typesetting a journal (Wiadomo´sci something called AUCTEX, which was a TEX-mode Matematyczne, a journal of the Polish Mathematical on steroids. Society), and how I utilized LAT X and GNU Emacs E In the previous paragraph, I mentioned modes. in my workflow. After submitting my paper to the In order to understand what an Emacs mode is, let proceedings issue of TUGboat, Karl Berry asked me me explain what this whole Emacs thing is about. whether I'd like to prepare a paper about using Emacs with LATEX. 1 Basics of Emacs Well, I jumped at the proposal.