Who should use this book? This book is for anyone who wants to learn how to program in the Korn Shell. While many of the examples will carry over to other shells, this book focuses on Korn Shell. What is covered in this book? + The Korn Shell command interpretor + Scripts, external functions, internal functions + Variables and arrays + Program input, output, error, and parameter handling + Conditional and looping logic + In-line commands and statements + String and integer operations + Using the trap command + Using grep and egrep + Basic sed and awk programming + Many utilities