■About the Author................................................................................................. xvi
■About the Technical Reviewer ............................................................................. xvii
■Introduction ....................................................................................................... xix
■Chapter 1: Hello, World! Your First Shell Program..................................................1
■Chapter 2: Input, Output, and Throughput ...............................................................7
■Chapter 3: Looping and Branching ........................................................................19
■Chapter 4: Command-Line Parsing  and Expansion...............................................29
■Chapter 5: Parameters and Variables....................................................................43
■Chapter 6: Shell Functions.....................................................................................59
■Chapter 7: String Manipulation..............................................................................67
■Chapter 8: File Operations and Commands ...........................................................79
■Chapter 9: Reserved Words and  Builtin Commands .............................................97
■Chapter 10: Writing Bug-Free Scripts  and Debugging the Rest..........................113
■Chapter 11: Programming for  the Command Line ..............................................125
■Chapter 12: Runtime Configuration .....................................................................141
■Chapter 13: Data Processing ...............................................................................157
■Chapter 14: Scripting the Screen.........................................................................179
■Chapter 15: Entry-Level Programming ................................................................191
■Appendix: Shell Variables....................................................................................205
■Index..................................................................................................................221

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