Cours - Systèmes d'exploitation et cloud
91 documents à télécharger gratuitement
Cours de systèmes d'exploitation et cloud, partagés par des étudiants et des enseignants. Thèmes couverts : Linux, Unix, Windows Server, Docker, Kubernetes, virtualisation.
This document is a comprehensive guide on GNU and Unix commands used in Linux operating system management. It covers shell commands, text stream processing with filters, and basic file management commands like `ls`, `rm`, and `mkdir`. It also details the use of pipes, redirections, and process management commands such as `ps`, `top`, and `kill`. The document includes practical examples of commands for tasks like text manipulation, file system navigation, and process control to aid candidates with proficient command line operation skills.
This document serves as a detailed guide for Linux Professional Institute (LPI) Exam 101, focusing specifically on the Filesystem Hierarchy Standard (FHS) and command-line utilities for file management and navigation. It explains the structure and purpose of Linux directories, including static and variable files, and introduces critical commands like `find`, `locate`, and `updatedb` for efficient file location and management. Key concepts include how to create efficient searches based on permissions, sizes, ownership, or types, with practical examples provided. The material emphasizes a sys...
This document offers detailed guidance on understanding the Linux filesystem hierarchy, including hard links and symbolic links. It elaborates on Unix object manipulation, inode metadata handling, file path structures, and practical uses of both link types. Practical examples and commands, such as 'ln', 'rm', and 'ls', are provided to solidify theoretical concepts. The document highlights the Unix philosophy that 'everything is a file' and provides essential tips for LPI exam readiness related to link command usage and quota management.
This document systematically covers Linux file and directory permissions, including specialized access management techniques like SUID, SGID, and sticky bits. It explains commands like chmod, umask, chown, and chgrp for controlling file and directory access. Key methodologies include managing user and group permissions, addressing default file permission settings, and employing ACLs for collaborative environments. The guide emphasizes detailed command-line examples for practical application of advanced permission concepts.
This document provides an in-depth overview of disk quota management in Linux systems, covering user and group quotas. It details commands and their syntax, including quotaon, edquota, setquota, quotacheck, and repquota, for activating, editing, and monitoring quotas. Key configuration parameters such as soft and hard limits, grace periods, and filesystem-specific operations are explained. Additionally, practical examples and advice for utilizing quota-related options in the context of LPI Exam preparation are included.
This document outlines key concepts for managing filesystems on Linux operating systems, as part of the LPI (Linux Professional Institute) certification preparation. Covered topics include manually mounting and unmounting filesystems, configuring boot-time mount processes using 'fstab,' and utilizing mounting options and commands like 'mount,' 'umount,' 'fuser,' and 'lsof.' The document also explores various filesystem types, options, and troubleshooting techniques for identifying occupied devices, handling removable media, and ensuring system consistency.
This document is a comprehensive guide for the 'Préparation LPI' exam focusing on the Vi/Vim text editor. It covers Vi's three operational modes: Command, Insert, and Ex mode, explaining their functionalities and common navigation commands. It includes instructions on text manipulation, line navigation, file management, and substitution commands, alongside tips for recovering from crashes and using Vim's additional tutorial tool. The material is structured for quick understanding and practice, identifying key LPI-specific utilities.
This document explains the management and modification of process priorities in Linux. It covers commands like 'nice' and 'renice', enabling users or root to set or adjust process priority levels. It highlights default priority ranges from -20 to 19, with root having exclusive permissions for negative priorities. Practical examples and usage scenarios for managing command-line program execution priorities are also provided.
This document provides a detailed overview of text processing and redirection commands in Linux. It covers tools like `cat`, `tac`, `split`, `od`, `tr`, `wc`, and others for text manipulation, along with explanations of flags and options. Advanced tasks such as sorting, joining, and editing text streams using `sort`, `join`, and `sed` are explained with examples. Emphasis is placed on using standard streams, redirection, and piping workflows to handle files efficiently. Clear examples and command options make it suitable for system administration and Linux certification preparation.
The document covers essential Linux commands for processing text files and streams, with detailed sections on tools like `cat`, `tac`, `split`, `expand`, `tr`, `wc`, and others. Each command includes use cases, syntax, and options for file manipulation and redirection. It emphasizes practical examples, like file concatenation, character transformation, and sorting, to demonstrate command-line proficiency. The content aims to assist learners preparing for the Linux Professional Institute (LPI) Exam 101, providing foundational skills needed for system administration tasks.
This document serves as a comprehensive guide to understanding and utilizing internal and online Linux documentation. It explains the use of key commands such as man, info, whatis, and apropos, and details their configuration and functionalities. It also provides an overview of file structures, including manual sections, environmental variables like MANPATH, and resources such as the Linux Documentation Project. Finally, it discusses notification methods for users via configuration files like /etc/issue and /etc/motd, emphasizing the importance of system notifications.
This document serves as a study guide for the LPI 101 Exam section 103.1, emphasizing the basics and advanced functionality of the Bash shell in Linux. It covers essential topics like command-line usage, shell environment variables, command types, valid shell configurations, and historical command recall. Additionally, it elaborates on shortcuts, common errors, command syntax, initialization files, and practical applications for managing shell behavior and execution.
This document details Debian package management, focusing on tools such as dpkg, aptitude, and apt-get. It addresses operations including installation, reinstallation, updates, removal, and package dependency management. Emphasis is placed on commands, file configurations, and troubleshooting techniques within the Debian and Ubuntu distributions. Findings advocate the utility of APT for dependency resolution, graphical tools like Synaptic, and the adaptability of dpkg for direct package installations outside repositories.
The document outlines foundational knowledge about Linux partitioning, emphasizing the structure, naming conventions, and types of partitions, as well as the importance of Logical Volume Management (LVM). It details strategies for managing storage systems efficiently and dynamically. Best practices for partition allocation based on server use and filesystem isolation are highlighted. Key focus is also placed on boot partition setup, variable data storage, and recommendations for user and system files separation.
The document describes the sequence of Linux system startup including BIOS POST, bootloader execution, and kernel loading, emphasizing detailed processes like GRUB and LILO functionalities. It highlights kernel options, initramfs for module loading, and key filesystem behaviors. Additionally, it explains Linux logging mechanisms, from log file structure to key system logs, and offers commands for log examination and management. The overall focus is on preparing learners for the LPI 101.2 exam, with practical guidance and technical insights.
This document is a comprehensive guide designed to prepare for the LPI 101 exam, covering the configuration and management of hardware devices on Linux systems. It explains concepts like IRQ, DMA, and I/O addresses, and details the use of tools like `dmidecode`, `lshw`, and `hwinfo` for hardware inventory and diagnostics. Additionally, it introduces key system components such as BIOS, HAL, udev, sysfs, and dbus, emphasizing their roles in dynamic device management. Practical examples, configurations, and command usage are provided for real-world application and better understanding.
The document provides an in-depth explanation of processes in operating systems, covering their structure, execution, and management. It details key concepts such as process states, multiprogramming, and process control blocks (PCB), highlighting the roles of the kernel and system resources. Methodologies for creating and destroying processes in Unix and Windows are extensively outlined, as are the fundamentals of process scheduling and CPU utilization strategies. Core points include inter-process communication, memory management, and algorithms for process scheduling aiming at improving CP...
The document introduces operating systems, elaborating on their fundamental role in managing hardware and providing a foundation for application software. It defines operating systems as intermediary programs that coordinate processor usage, memory allocation, and peripheral management, offering a unified interface for applications. Key concepts discussed include operating modes (kernel and user), system types (centralized, distributed, open/closed systems), resource management functionalities, and classifications based on hardware architecture and multitasking capabilities. Special cases l...
The document provides an educational overview of operating system process management, starting with the fundamental concept of processes, their dynamic nature, and execution as programs. It explains important topics such as multiprogramming through pseudo-parallelism, process creation and genealogy, and the key memory and context components of a process. It also delves into core functionalities of operating systems like process states (active, ready, blocked), context switching, handling interruptions, and strategies for process scheduling to optimize CPU utilization and user satisfaction.
The document introduces the concept of virtualization in GNU/Linux, explaining its significance in system efficiency and resource optimization. It outlines various virtualization techniques, highlighting their applications and use cases. The content delves into specific virtualization products, comparing their features and performance. Overall, it emphasizes the benefits and practical implementation of virtualization in Linux systems.
This chapter focuses on understanding text editors within the GNU/Linux ecosystem. It explores their functionality, providing insights into advanced commands and documentation tools. The goal is to enable users to leverage these tools effectively in their system workflows. A structured overview is offered on key text editor features and integration within Linux environments.
This document is an evaluation questionnaire designed for a course on GNU/Linux concepts and commands. It contains 70 multiple-choice questions that assess a student's understanding of Linux operating systems, including topics such as system setup, commands, file handling, process management, virtualizations, and kernel configurations. The questions explore various use cases, such as partitioning, file systems, VI editing, Linux permissions, console operations, and advanced topics like clusters and virtual machines. The exam emphasizes foundational and advanced knowledge required for Linux...
This document serves as the correction guide for the 'Evaluation 2' exam in the GNU/Linux course, MP2L. It contains an answer key for a series of multiple-choice questions (1-70), providing the correct answer options as a reference for students and educators. No detailed explanations or justifications are supplied, making it a straightforward answer sheet. The corrections aim to assist in assessing student understanding of GNU/Linux concepts and applications.
This document presents an in-depth guide on the installation, configuration, and maintenance of GNU/Linux distributions. It introduces categories of installation methods, discusses the tools and terminology crucial for setting up various system types (e.g., workstations, servers, or personalized configurations), and elaborates specific steps for Debian installations. Key topics include partitioning, boot processes, and the use of different disk and installer configurations to adjust to user needs.