Shell Scripting: Expert Recipes for Linux, Bash and More Paperback – 26 Aug 2011
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From the Back Cover
Tried–and–true recipes that can be immediately applied or easily adjusted to meet your needs
The shell is the primary way of communicating with Unix and Linux systems, providing a direct way to program by automating simple to intermediate tasks. In this invaluable resource, Unix, Linux, and shell scripting expert Steve Parker shares a collection of shell scripting recipes that can be used as provided or easily modified for a variety of environments and situations. The book begins with coverage of theory and principles, replete with insightful examples of each element discussed. You then move on to an in–depth discussion of shell programming, covering all Unix flavors but with a focus on Linux and the Bash shell. All the while, you explore credible, real–world recipes and the tools necessary to get started immediately.
Shares a compendium of helpful shell scripting recipes that can be used to address a variety of real–world challenges
Includes recipes using file and text control as well as general systems administration tasks
Provides a host of plug–and–play recipes ready for you to immediately apply and easily modify
Examines variables, if/then conditionals, loops, functions, pipes, redirects, and more
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About the Author
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.
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Top customer reviews
Material is presented in a logical order; it has lots of examples, and the explanations are clear. It begins with very simple things, and ends up with very powerful scripts particularly useful to system administrators.
I am totally hooked on this book! This has never happened with Linux scripting before. When you wake up thinking of examples to add to your code .. that's a break through book.
Simple examples - the code works and works wells. So you get excited and start thinking up other additions for your script. Before you know it, you're well into it.. and it's happened literally by osmosis. You'll be into it, before you've realised that you are.
Very pragmatic, great examples, and they work so well that it's rewarding to keep reading :)
It also explains mega gotchas, such as some variables such as RANDOM and HISTCMD can be unset, but then you can't get back the special functionality which they had before eg $RANDOM will no longer return random numbers after it's been unset.
Concise explainations but every page consists of code snippets to try out.. and learn by doing.
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