Korn Shell: Unix and Linux Programming Manual, Third Edition, The

Chapter 1. Introduction

Major Features

Where to Get the Korn Shell

Which Version Do You Have?

Logging In

Invoking the Korn Shell Separately

Using the Korn Shell in Scripts

The Korn shell is an interactive command and programming language that provides an interface to the Unix and other systems. As an interactive command language, it is responsible for reading and executing the commands that you enter. For example, when you type in the date command to check the system date, your login shell is responsible for interpreting the command before it is executed. It also provides the ability to customize your working environment. You can set up your own commands, specify environment variables for other programs, change your command prompt, and a lot ...