A compendium of shell scripting recipes that can immediately be used, adjusted, and applied The shell is the primary way of communicating with the Unix and Linux systems, providing a direct way to program by automating simple-to-intermediate tasks. With this book, Linux expert Steve Parker shares a collection of shell scripting recipes that can be used as is or easily modified for a variety of environments or situations. The book covers shell programming, with a focus on Linux and the Bash shell; it provides credible, real-world relevance, as well as providing the flexible tools to get started immediately. * Shares a collection of helpful shell scripting recipes that can immediately be used for various of real-world challenges * Features recipes for system tools, shell features, and systems administration * Provides a host of plug and play recipes for to immediately apply and easily modify so the wheel doesn't have to be reinvented with each challenge faced Come out of your shell and dive into this collection of tried and tested shell scripting recipes that you can start using right away!
Steve Parker is an IT consultant specializing in Solaris and GNU/Linux. He has been providing consultancy services for more than a decade. He is the author of the popular Bourne Shell Programming/Scripting Tutorial (http://steve-parker.org/sh/sh.shtml), which sees more than one million visitors a year.
INTRODUCTION xxix PART I: ABOUT THE INGREDIENTS. CHAPTER 1: THE HISTORY OF UNIX, GNU, AND LINUX 3 CHAPTER 2: GETTING STARTED 15 CHAPTER 3: VARIABLES 33 CHAPTER 4: WILDCARD EXPANSION 67 CHAPTER 5: CONDITIONAL EXECUTION 83 CHAPTER 6: FLOW CONTROL USING LOOPS 111 CHAPTER 7: VARIABLES CONTINUED 139 CHAPTER 8: FUNCTIONS AND LIBRARIES 161 CHAPTER 9: ARRAYS 199 CHAPTER 10: PROCESSES 219 CHAPTER 11: CHOOSING AND USING SHELLS 255 PART II: RECIPES FOR USING AND EXTENDING SYSTEM TOOLS. CHAPTER 12: FILE MANIPULATION 279 CHAPTER 13: TEXT MANIPULATION 315 CHAPTER 14: TOOLS FOR SYSTEMS ADMINISTRATION 353 PART III: RECIPES FOR SYSTEMS ADMINISTRATION. CHAPTER 15: SHELL FEATURES 409 CHAPTER 16: SYSTEMS ADMINISTRATION 427 CHAPTER 17: PRESENTATION 459 CHAPTER 18: DATA STORAGE AND RETRIEVAL 471 CHAPTER 19: NUMBERS 483 CHAPTER 20: PROCESSES 501 CHAPTER 21: INTERNATIONALIZATION 517 PART IV: REFERENCE. APPENDIX: FURTHER READING 529 GLOSSARY 533 INDEX 539