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Product Description
Product Description
It's simple: you need to know how to work with the bash shell if you want to get to the heart of Mac OS X, Linux, and other Unix systems. Updated for the most recent version of bash, this concise little book puts all of the essential information about bash at your fingertips. You'll quickly find answers to annoying questions that always come up when you're writing shell scripts -- What characters do you need to quote? How do you get variable substitution to do exactly what you want? How do you use arrays? -- and much more.
If you're a user or programmer of any Unix variant, or if you're using bash on Windows, you'll find this pocket reference indispensable. This book covers:
- Invoking the Shell
- Syntax
- Functions
- Variables
- Arithmetic Expressions
- Command History
- Programmable Completion
- Job Control
- Shell Options
- Command Execution
- Coprocesses
- Restricted Shells
- Built-in Commands
About the Author
Arnold Robbins is a professional programmer and technical author who has worked with Unix systems since 1980 and has been using AWK since 1987. As a member of the POSIX 1003.2 balloting group, he helped shape the POSIX standard for AWK. Arnold is currently the maintainer of gawk and its documentation. He is coauthor of the sixth edition of O'Reilly's Learning the vi Editor.
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Most Helpful Customer Reviews on Amazon.com (beta)
Amazon.com:
4.3 out of 5 stars (7 customer reviews)
10 of 10 people found the following review helpful
5.0 out of 5 stars
Nice guide, July 18 2010
By H. Bork - Published on Amazon.com
Amazon Verified Purchase(What's this?)
This review is from: bash Pocket Reference (Paperback)
As the copy on the back of this book claims, the O'Reilly 'Bash Pocket Reference' allows one to "quickly find answers to the annoying questions that always come up when you're writing shell scripts." As you would expect, this is a reference manual, and unless you already know the fundamentals of BASH, it won't be of much use, unless used in conjunction with another, more expansive book. My favorite part of this book so far has been its treatment of more obscure shell variables, and its quick reference for shell builtins.I should point out, though (and this is something that a previous reviewer seems to have missed), that this guide does *not* cover the use/syntax of all the external programs one might find on a *NIX system (e.g., grep, find, etc.). The reference is to BASH only and its associated builtin commands. And to be honest, external commands don't really *need* a reference like this, since they should already have man-pages that explain their usage.
Considering the price and the abundance of information, the BASH pocket reference is a great buy for anyone who does even casual work in the BASH shell.
3 of 3 people found the following review helpful
5.0 out of 5 stars
Gets you up and running, Sep 30 2010
By David Wallace Croft - Published on Amazon.com
Amazon Verified Purchase(What's this?)
This review is from: bash Pocket Reference (Paperback)
I came into a job that relies heavily upon bash scripts. This book gave me what I needed to get up and running.
1 of 1 people found the following review helpful
5.0 out of 5 stars
A must have!, Jan 25 2011
By Bushido Hacks "Mr. Hacks" - Published on Amazon.com
This review is from: bash Pocket Reference (Paperback)
Linux users know all to well that typing "man bash" or "info bash" in the text console is like opening The Bible and starting at Genesis when you want to read a chapter from St. Luke. Of course, the way the Bash man pages are written, Jesus may come back by the time you finish reading it.For those who would like to write shell scripts and learn from the Bash man pages but don't have an eternity to spare reading a verbose document on such an easy programming tool, the Bash Pocket Reference is for you.
Because my eyes (and pocketbook) have yet to adjust to the concept of eBooks, the dead tree edition is preferred. Combine working knowledge with other books (like the sed & awk Pocket Reference and the Linux Pocket Guide) and internet resources with this book and you'll be writing shell scripts like a pro in just a few hours. Then after a few days, you'll start to kick butt writing shell scripts that do things that GUI based programs do but at a price of memory consumption. (BTW, use a text editor like vim or emacs when programming! Learning how to use screen or tmux also couldn't hurt, in fact it will make things more productive provided you can memorize various combinations to complete tasks.)
I highly recommend this book for anyone using Linux or UNIX as their operating system.
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