Linux is a multi-program system. At any given point of time, several processes are running or waiting in a queue on the system, however, a single CPU can actually execute one task at a time. If we have more long process queue, then it might happen that some more important processes spend more time waiting than executing. So, to overcome this problem, Linux allows us to set and modify a processes' priority. Lower-priority processes get less CPU time and higher-priority processes get more CPU time. Using the nice and renice command, we can manage the priority of processes.
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CentOS Quick Start Guide
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CentOS Quick Start Guide
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Overview of this book
Linux kernel development has been the worlds largest collaborative project to date. With this practical guide, you will learn Linux through one of its most popular and stable distributions.
This book will introduce you to essential Linux skills using CentOS 7. It describes how a Linux system is organized, and will introduce you to key command-line concepts you can practice on your own. It will guide you in performing basic system administration tasks and day-to-day operations in a Linux environment.
You will learn core system administration skills for managing a system running CentOS 7 or a similar operating system, such as RHEL 7, Scientific Linux, and Oracle Linux. You will be able to perform installation, establish network connectivity and user and process management, modify file permissions, manage text files using the command line, and implement basic security administration after covering this book.
By the end of this book, you will have a solid understanding of working with Linux using the command line.
Table of Contents (11 chapters)
Preface
Free Chapter
Getting Started with CentOS 7
Command-Line and Filesystem Navigation
Managing Text Files
User and Group Management
Managing File Permissions
Process Management
Managing Networking in CentOS
Software Package Management
Overview of Essential Advance Utilities
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