Sarwar Syed Mansoor - UNIX

UNIX

The Textbook

THIRD EDITION

UNIX

The Textbook

THIRD EDITION

Syed Mansoor Sarwar
Robert M. Koretsky

CRC Press

Taylor & Francis Group

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2017 by Taylor & Francis Group, LLC

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Version Date: 20160226

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Library of Congress Cataloging-in-Publication Data

Names: Sarwar, Syed Mansoor, author. | Koretsky, Robert, author.

Title: UNIX : the textbook / Syed Mansoor Sarwar and Robert M. Koretsky.

Description: Third edition. | Boca Raton : Taylor & Francis, CRC Press, 2016. | Includes bibliographical references and index.

Identifiers: LCCN 2016009010 | ISBN 9781482233582 (alk. paper)

Subjects: LCSH: UNIX (Computer file) | Operating systems (Computers)

Classification: LCC QA76.774.U64 S37 2016 | DDC 005.4/32--dc23

LC record available at http://lccn.loc.gov/2016009010

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To my family

S.M.S.

To my family

R.M.K.

Contents

This third edition of UNIX: The Textbook has many significant changes and additions incorporated into it, in terms of both the scope and content of the previous editions. It is a textbook on the modern, twenty-first-century UNIX operating system. It uses an introductory approach in style, very similar to the style of the previous editions. With the exception of four chapters on system programming, the book can be used very successfully by a complete novice, as well as by an experienced UNIX system user, in both an informal and formal learning environment.

The two UNIX systems that we deploy to illustrate everything in this edition are PC-BSD and Solaris. There are many things that make these two systems superior to, as well as very different from, any contemporary, nominally UNIX distribution, and also from other NIX-like operating systems, such as Linux and OS X. There are many topics covered in this book that older, more traditional textbook approaches to UNIX could not include, such as the Zettabyte File System (ZFS) and a highly developed KDE or Gnome GUI desktop environment. The traditional text-based command line interface, though, is still a very integral part of our presentation of UNIX.

CHANGES IN THE THIRD EDITION OF THIS BOOK

Because PC-BSD and Solaris UNIX have had many important functional additions made to the application user interface since the previous edition came out, and because UNIX is now an even more widely-dispersed system in the marketplace than previously, we felt that we needed to add instructional material to the book covering these additions, including:

Showing desktop KDE PC-BSD and Gnome Solaris as base system implementations of UNIX.

Adding methods for customizing vi, vim, and emacs.

Adding a complete tutorial chapter on the Python programming language and its use in UNIX.

Giving a complete tutorial on the git command, and using Github.

Adding four new, complete chapters on UNIX system programming and the UNIX API.

Revising the chapter on networking and internetworking to bring it in line with current standards.

Complete covering system call interfaces, files, file-related data structures in the UNIX kernel, file I/O paradigms, and file manipulation API.

Extensive coverage of UNIX processes and threads, process-related kernel data structures in the UNIX kernel, process management API, and signal handling.

Comprehensively covering interprocess communication in UNIX using pipes, named pipes (FIFOs), and sockets.

Comprehensively coverage of Internetworking with UNIX TCP/IP: the clientserver software for the Internet services using sockets, including the design and implementation of concurrent servers using the select system call and the need for concurrent clients.

Providing coverage of important practical considerations in the design and implementation of production-quality clientserver software.

Completely revising much of the tutorial section on the X Window System to now include writing Xlib and Xcb code.

Adding a new, extensive chapter on UNIX system administration that details installation, maintenance, and updating/upgrading PC-BSD and Solaris systems on your own PC.

Adding a complete reference chapter on ZFS, the default file system on PC-BSD and Solaris.

Adding a complete chapter on virtualization methodologies that illustrate PC-BSD jails and iocage, Solaris zones, and installation of various guest operating systems in popular host systems using VirtualBox.

Adding many new diagrams, tables, interactive shell sessions, in-chapter tutorials, in-chapter exercises, and end-of-chapter problems.

Providing coverage of many new commands and enhancing coverage of existing commands.

Providing up-to-date URLs for important Web resources on nearly everything in the book.

Enhancing the usability of all shell scripts, Python and C programs, and other programming code shown in the printed book, by installing them at a Github repository for easy download to a local repository.

Redesigning the text layout to provide a more usable active learner document.

As in the last editions, one very important fact to keep in mind when you look at what we have included in this edition, and for that matter in the sequencing and presentation of all the material in the book, is the fact that we have almost 65 years of practical teaching experience at the college level. Our continuing concept for this book grew out of our unwillingness to use either the large, intractable UNIX reference sources or the short nutshell guides to teach meaningful, complete, and relevant introductory classes on the subject. We still feel very strongly that a textbook approach, with pedagogy incorporating in-chapter tutorials and exercises, as well as useful problem sets at the end of each chapter, allows us to present all the important UNIX topics for a classroom lecturelaboratoryhomework presentation. We have continued to fine-tune this textbook presentation in a manner consistent with optimal learning outcomes (i.e., well-thought-out sequencing of old and new topics, well-developed and timely lessons, online laboratory problems, and homework exercises/problems synchronized with the sequencing of chapters in the book). As in the earlier editions, because of the greatly increased depth and breadth of coverage of the basic and advanced topics we present, anyone interested in furthering their professional knowledge of the subject matter will also find this textbook useful.