Book Image

CentOS Quick Start Guide

By : Shiwang Kalkhanda
Book Image

CentOS Quick Start Guide

By: Shiwang Kalkhanda

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)

Viewing current processes

Each process running on a Linux system has various attributes, such as PID, PPID, the CPU time consumed by the process, the physical and virtual memory consumption of the process, and so on. All of this information can be found in the process table of the operating system. When working in a multi-user environment, it might happen that a process started by a user consumes the CPU cycle excessively. Hence, it is essential to manage processes and to manage computer resources efficiently. For this, we need to identify the types of processes and change their priority levels, or even terminate them if required. This section describes the use of various commands that are helpful for viewing processes and their attributes.

Listing running processes

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