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This valuable tutorial and reference takes UNIX users and programmers through the specifics of the Korn shell--the popular user interface. It teaches clearly and quickly how to interact properly with the UNIX shell, and even delves into advanced topics such as writing shell scripts.
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This Nutshell Handbook® is a thorough introduction to the Korn shell, both as a user interface and as a programming language.The Korn shell, like the C and Bourne shells, is a program that interprets UNIX commands. It has many features that aren't found in other shells, including command history (the ability to recall and edit previous commands). The Korn shell is also faster; several of its features allow you to write programs that execute more quickly than their Bourne or C shell equivalents.This book provides a clear and concise explanation of the Korn shell's features. It explains ksh string operations, co-processes, signals and signal handling, and one of the worst "dark corners" of shell programming: command-line interpretation. It does this by introducing simple real-life examples and then adding options and complexity in later chapters, illustrating the way real-world script development generally proceeds. An additional (and unique) programming aid, a Korn shell debugger (kshdb), is also included.Learning the Korn Shell is an ideal resource for many UNIX users and programmers, including software developers who want to "prototype" their designs, system administrators who want to write tools for their own use, and even novices who just want to use some of ksh's more advanced interactive features.
This book is an all-around tutorial and reference to creating tools for information processing in the UNIX environment. Primarily designed for the experienced user, UNIX Desktop Guide to Tools provides step-by-step development techniques for applications, command reference entries, and tips on numerous UNIX utilities to boost UNIX performance.
O'Reilly's bestselling book on Linux's bash shell is at it again. Now that Linux is an established player both as a server and on the desktop Learning the bash Shell has been updated and refreshed to account for all the latest changes. Indeed, this third edition serves as the most valuable guide yet to the bash shell.As any good programmer knows, the first thing users of the Linux operating system come face to face with is the shell the UNIX term for a user interface to the system. In other words, it's what lets you communicate with the computer via the keyboard and display. Mastering the bash shell might sound fairly simple but it isn't. In truth, there are many complexities that need careful explanation, which is just what Learning the bash Shell provides.If you are new to shell programming, the book provides an excellent introduction, covering everything from the most basic to the most advanced features. And if you've been writing shell scripts for years, it offers a great way to find out what the new shell offers. Learning the bash Shell is also full of practical examples of shell commands and programs that will make everyday use of Linux that much easier. With this book, programmers will learn: How to install bash as your login shell The basics of interactive shell use, including UNIX file and directory structures, standard I/O, and background jobs Command line editing, history substitution, and key bindings How to customize your shell environment without programming The nuts and bolts of basic shell programming, flow control structures, command-line options and typed variables Process handling, from job control to processes, coroutines and subshells Debugging techniques, such as trace and verbose modes Techniques for implementing system-wide shell customization and features related to system security
This second edition of the KornShell book is the specification of the revised KornShell language and a reference handbook for ksh, the program that implements the KornShell language. The language has undergone major changes and additions since the first edition. The new features of the language have increased the scope of applications that are suitable for writing in ksh. In addition, command completion and a key binding mechanism have been added to this version of ksh. The tutorial describes both of the functions of ksh: as an interactive command language, and as a programming language. This book is intended for new users with little computer or shell experience, as well as experienced users who are familiar with ksh and/or other shells.
A hands-on, interactive guide to shell programming with the KornShell and Bourne shell, this introductory title is directly applicable to both the UNIX and Windows environments. As a bonus, the book includes the CBT Systems UNIX training module on the CD-ROM.
A guide to the operating system's commands and options covers the shell, package management, text editing, source code management, and GDB debugger.
UNIX for OpenVMS Users, Second Edition, is for users who are making the transition from OpenVMS to UNIX and provides a comprehensive comparison of commands and utilities. Starting from a working knowledge of OpenVMS, it takes an average user to a comparable knowledge of UNIX. It bridges the gap between OpenVMS and UNIX by explaining things in OpenVMS terms. The book begins with a tutorial discussing the concepts needed when working with UNIX and the common shell programs. Working into practical examples, the book shows simple daily tasks that map one-for-one from OpenVMS to UNIX. These include system access, file manipulation, text editing and mail. The examples provide commands that are as equivalent as possible, and point out subtle differences. Recent releases of OpenVMS and UNIX have added interfaces that are exactly the same between the operating systems, particularly POSIX and CDE. UNIX for OpenVMS Users, describes these interfaces briefly, mainly to reassure users how easy it can be to switch between the operating systems. Maps OpenVMS concepts onto UNIX Pertinent to all major versions of UNIX Covers latest version of OpenVMS and new features of UNIX, such as CDE