Introducing The Unix System

Provides an Understanding of the UNIX System Through Coverage of Shell Programming, the Ex-Text Editor, the Vidisplay Editor, Text Manipulation, the Directory Structure & More

A handy book for someone just starting with Unix or Linux, and an ideal primer for Mac and PC users of the Internet who need to know a little about Unix on the systems they visit. The most effective introduction to Unix in print, covering Internet usage for email, file transfers, web browsing, and many major and minor updates to help the reader navigate the ever-expanding capabilities of the operating system.

For beginning, intermediate, and advanced users, this book offers complete coverage of UNIX. Offering information on basic UNIX, programming UNIX, communications and networking, the book also discusses new, more advanced tools such as Perl and presents in-depth discussions of the Internet, Windows, Linux, the bestselling UNIX systems, and more.

Introduction to Unix and Shell Programming is designed to be an introductory first-level book for a course on Unix. Organised into twelve simple chapters, the book guides the students from the basic introduction to the Unix operating system and ext.

An introductory, tutorial style text covering the basics of UNIX and Linux for the complete beginner, this is a comprehensive and well written introduction to these operating systems. It assumes no prior knowledge of programming nor any experience of using computers. UNIX and Linux are two of the most commonly used operating systems within the educational and corporate worlds and are growing in popularity. This book covers all the basic constructs and commands of UNIX and follows the 1993 POSIX.2 International Standard.

A growing concern of mine has been the unrealistic expectations for new computer-related technologies introduced into all kinds of organizations. Unrealistic expectations lead to disappointment, and a schizophrenic approach to the introduction of new technologies. The UNIX and real-time UNIX operating system technologies are major examples of emerging technologies with great potential benefits but unrealistic expectations. Users want to use UNIX as a common operating system throughout large segments of their organizations. A common operating system would decrease software costs by helping to provide portability and interoperability between computer systems in today's multivendor environments. Users would be able to more easily purchase new equipment and technologies and cost-effectively reuse their applications. And they could more easily connect heterogeneous equipment in different departments without having to constantly write and rewrite interfaces. On the other hand, many users in various organizations do not understand the ramifications of general-purpose versus real-time UNIX. Users tend to think of "real-time" as a way to handle exotic heart-monitoring or robotics systems. Then these users use UNIX for transaction processing and office applications and complain about its performance, robustness, and reliability. Unfortunately, the users don't realize that real-time capabilities added to UNIX can provide better performance, robustness and reliability for these non-real-time applications. Many other vendors and users do realize this, however. There are indications even now that general-purpose UNIX will go away as a separate entity. It will be replaced by a real-time UNIX. General-purpose UNIX will exist only as a subset of real-time UNIX.