Systèmes d'exploitation et cloud
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Cours, examens, TD, TP et exercices de systèmes d'exploitation et cloud. Thèmes couverts : Linux, Unix, Windows Server, Docker, Kubernetes, virtualisation.
Ce document explique les concepts de processus et de threads dans le cadre des systèmes d'exploitation. Il décrit la structure d'un processus, les différences avec un programme, et présente l'appel système fork() pour créer des processus. Des exemples illustrent la création et la gestion des processus, ainsi que leur terminaison.
Ce document traite de la gestion des processus dans un environnement Linux. Il guide l'utilisateur à travers plusieurs commandes essentielles pour interagir avec les processus, comme lister, lancer et tuer des processus. Il explique également le système de fichiers des processus et comment explorer les informations sur les processus en cours.
This course provides an introduction to operating systems, discussing their definitions, functionalities, and the various types of hardware they manage. It emphasizes the importance of the OS in both single-user and multi-user environments and outlines the optimization goals for usability and resource sharing. The course also touches on historical figures and concepts related to the evolution of operating systems.
This document explores Android storage options including internal, external storage, SQLite databases, and shared preferences, providing examples of code implementation for each. It also elaborates on background processing in Android using threads, services, and AsyncTask, highlighting best practices for asynchronous operations. Various methods for saving and retrieving data, managing permissions, and lifecycle considerations for services are detailed. Finally, practical examples are used to demonstrate functionality and troubleshooting techniques.
This document serves as a revision guide for first-year students in computing, focusing on shell commands and scripting exercises. It includes a series of exercises designed to practice basic shell commands, as well as regular expressions. Students are instructed to write scripts that perform various tasks, providing them with hands-on programming experience.
This document contains exercises for a practical workshop on operating systems. It includes tasks related to scripting for file management and mathematical calculations. The exercises aim to enhance programming skills in a Unix-like environment.
This document presents the Stream Editor (SED), an important tool for manipulating text files in Unix systems. It discusses the relevance of using SED and AWK in modern computing environments and explains the principles of how SED operates and its commands. Additionally, the document highlights the evolution of documentation formats and the critical role these tools play for system administrators.
This document outlines practical exercises for shell scripting within an operating systems context. It includes tasks such as creating scripts, passing parameters, and using special variables. Additionally, it covers how to implement conditional instructions and interact with users through input prompts.
This document examines the concepts of variable scope and attributes in shell scripting. It discusses how variables are accessed and modified within functions, as well as how to manage variable visibility between processes. Additionally, it covers the importance of exporting variables for use in subprocesses.
This document presents practical work on operating system environments, focusing on shell scripting and the evaluation of expressions. It covers variable usage in shell scripting, common syntax errors, and proper practices for assigning and accessing variables. The document is intended for students of the computer science department during the academic year 2016-2017.
Ce document présente des travaux pratiques sur l'interaction avec les fichiers et répertoires dans un système d'exploitation. Il inclut des exercices sur l'utilisation des commandes Linux pour gérer des fichiers et répertoires. Les étudiants sont également guidés à travers des activités pratiques pour mieux comprendre la gestion de l'espace disque.
The document introduces the Unified Process (UP) as a software development methodology that is iterative, incremental, and architecture-centric. It provides a systematic breakdown of the software lifecycle, detailing phases like inception, elaboration, construction, and transition. Each phase is described in terms of its objectives, activities, and deliverables, emphasizing the use of iterative cycles and the central role of use-case-driven design. Practical recommendations for requirement analysis, system architecture, design patterns, incremental development, and project management are ou...
This document is a practical workshop focused on Linux system characteristics using command-line tools. It covers topics such as system information retrieval, differences between interpreted and compiled languages, and managing the PATH variable. The document includes various exercises for hands-on learning.
Ce document pr sente une introduction g n rale sur les syst mes d'exploitation, en se concentrant principalement sur l'historique de UNIX et Linux. Il aborde galement les notions de multi-t che et les diff rences entre les syst mes d'exploitation classiques. Enfin, il explique le fonctionnement interne d'UNIX et son architecture.
This course focuses on mastering the Linux environment, programming shell scripts, and utilizing advanced text manipulation tools. Students will learn through a mixture of lectures and practical sessions, covering various Linux concepts and commands. The course includes a mix of grading based on continuous assessment and a final exam.
This document outlines the first laboratory work related to the IBM Bluemix platform. It details the objectives of discovering and manipulating the platform, particularly focusing on deploying a Node.js application. Instructions are provided for account creation, application development, and deployment processes.
This document introduces cloud computing, detailing its historical context, definitions, characteristics, advantages, and challenges. It explores significant milestones in the evolution of computing, particularly focusing on the emergence of cloud technologies. The course aims to provide foundational knowledge essential for understanding modern IT infrastructures and their applications.
This document serves as an introduction to the practical part of a cloud computing course, primarily focusing on IBM Bluemix. It discusses technologies such as CloudFoundry, Docker, and OpenStack, and their application within a Platform as a Service (PaaS) context. The document also outlines various services offered by Bluemix and how they facilitate application development without the need for extensive server management.
Ce document explique comment lancer une machine virtuelle Windows en utilisant Amazon EC2. Il détaille les étapes nécessaires pour accéder à la console EC2, créer et configurer une instance, et se connecter après son lancement. Des instructions spécifiques sur la création d'une paire de clés et le choix d'une AMI sont également fournies.
This document provides a comprehensive guide to Linux system administration, focusing on essential operations like system booting, user and group management, software package handling, backup processes, and log file handling. It details the Linux file system structure, multi-boot configuration with GRUB, and the intricacies of the boot process, starting from BIOS to kernel initialization and the 'init' process. Additionally, it covers task scheduling using CRON/ANACRON and key commands for system maintenance and customization, aiming to equip readers with foundational system administration...
Cet examen de Mai 2016 sur les systèmes d'exploitation comporte 9 questions, totalisant 20 points. Il évalue la gestion des processus ainsi que l'ordonnancement, en tenant compte de la clarté d'expression et de la qualité de l'écriture. Les étudiants doivent démontrer leur compréhension des concepts à travers des solutions de programmation et des explications théoriques.
This document outlines an introductory lab for programming in C under the GNU/Linux environment. It covers the essentials of language syntax, compiler implementation, and the debugging process, along with practical exercises. Students will compile a factorial program and utilize a debugger to observe variable behavior.
This document outlines practical exercises for a UNIX course, focusing on file manipulation, command execution, and system testing. Through a series of tasks, students learn to create symbolic links, test file accessibility, and use conditionals in programming. Additionally, the document includes exercises on command breakdown and interactive file creation.
This document contains exercises related to file system management and disk space representation. It discusses how a 2 Go disk is structured and the various file systems, including FAT, HFS, and UNIX. The goal is to study the allocation and access operations for specific logical sectors.