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)

Managing applications using RPM

RPM (short for Red Hat Package Manager) is an open source package management utility developed by Red Hat for RPM-based systems such as RHEL, CentOS, and Fedora. Using the RPM utility, the user can install, remove, update, query, and verify application packages built in the .rpm format. You can download .rpm packages from repositories containing application packages in .rpm format.

An RPM package may or may not require any resource prerequisites. If a rpm package requires any resource, such as a shared library or another package to be available on system before proceeding ahead with that rpm package installation, then those resources are known as dependencies of that package. A package management utility such as YUM automatically resolves the dependencies when a package is installed, while the RPM utility lacks this feature. Using the RPM utility...