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Preface

Introduction
    Example Code Segment
    Example Screen Output
    Example Command Line

Basic Shells
    Why Use Shells
    The Shell History
    Bourne Shell
    C Shell
    Korn Shell
    Read That Manual!
    What is a Shell Script Anyway
    Example Basic Shell Script
    In The Begining

Shell Syntax
    Invocation Flags
    Definitions
    Blanks
    Names
    Parameters
    Script Example
    Screen Output
    Built-In Commands

Command Substitution
    Example Grave Accent
    Quoting & Escaping
    Example Quoting
    Parameter Substitution

Startup & Environment
    What Are They?
    Why Use Them
    Example Useful Profiles
    Example Cron Test Function
    Example Raw Cron Test
    Example Setting User Environment
    Environment
    Example Environment Variables

Pipes, Lists & Redirection
    Pipe Dreams
    Example Pipes
    Lists
    Current Shell
    Sub Shell
    Redirects
    Example Redirected Cat
    Example Indented Cat
    Example Simple Menu

Input & Output
    Syntax Checking
    Example Syntax Checking
    Protect Yourself
    Example File Exists
    Example Verify
    Reading Keyboard Input
    Example Dot List
    Example Overwrite
    Where's My Print Gone?
    Temporary File Generation
    Filenames

Using Files
    Simple File Creation
    Example Cat & Variables
    Example Simple Echo
    Complex File Creation
    Example Complex Echo Forms
    Example List
    Example Counted List
    Example Sorted List
    File Reading
    Example Reverse List & Count Words
    Example Tail -f Option

Design Considerations
    Shell Script Style Guide
    Banners
    Banner Example
    Detailed Banner Notes
    Lesser Banners
    Example of Function or Procedure Banners
    Example of Logical Block Banners
    Example of Function Definition with Logical Blocks
    Symbols
    Symbol Form
    Class Form
    Layout
    Layout Rules
    Layout Example

Functions
    Simple Date & Time Functions
    Simple File Setup Functions
    Simple String Functions
    Simple Menu Functions
    Simple Utility Functions
    SQL*Net 1.0 Functions

Debugging
    Flags
    Example Flags
    Echo
    Example Echo
    Null Parameter Trap
    Null Parameter Example
    Error Messages
    Emergency Exit

 Putting It All Together
    Database Generator Script
    Script Listing

Appendix
    Oracle's .cshrc
    Oracle's .profile
    Oracle's .profile_references
    Oracle's .profile_paths
    Oracle's .profile_READ_ME

Code Examples