Mastering Unix Shell Scripting
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Product Description
Product Description
UNIX expert Randal K. Michael guides you through every detail of writing shell scripts to automate specific tasks. Each chapter begins with a typical, everyday UNIX challenge, then shows you how to take basic syntax and turn it into a shell scripting solution. Covering Bash, Bourne, and Korn shell scripting, this updated edition provides complete shell scripts plus detailed descriptions of each part. UNIX programmers and system administrators can tailor these to build tools that monitor for specific system events and situations, building solid UNIX shell scripting skills to solve real–world system administration problems.
From the Back Cover
Learn to create shell scripts to solve real–world UNIX problems
Get ready to take on the UNIX world! UNIX expert Randal K. Michael guides you through every detail of writing shell scripts to automate specific tasks. Each chapter begins with a typical, everyday UNIX challenge, and then shows you how to take basic syntax and turn it into a shell scripting solution. Throughout the book, you′ll also find complete shell scripts plus detailed descriptions of each part. You′ll be able to modify this information to build tools that monitor for specific system events and situations, building the skills to solve real–world system administration problems.
Make the most of Bash, Bourne, and Korn shells
Execute the proper commands for eachUNIX flavor
Define the correct command syntax to meet a specific shell scripting goal
Filter the commands′ output to strip out unneeded data
Build options into the shell script to give the end user more flexibility on the command line
Replicate data using rsync
Create snapshot–style backups using Dirvish
Work with records files to parse data
Prepare for government audits using specific commands
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Customer Reviews
Most Helpful Customer Reviews
5 of 5 people found the following review helpful
Format:Paperback
This book is simply the best. It's worth the money, believe me. Although it doesn't spend lots of time on the basics (the author skims through basic shell knowledge in the first chapter), this book contains *ANYTHING* you will need to know about Unix shell scripting. Before this book I bought "Classic Bash scripting" but it was nothing compared to Randal's book, and I'm not talking only about book "volume". After starting with bash scripting I soon had additional needs, such as functions to display users progress of a long running task, timing functions, rsync, process management, the use of expect to automatically interact with interactive programs, etc). This book has it all; especially it's divided into three sections, depending on the needs: The first section is about the basics of Shell programming (oh and BTW it covers BASH, Bourne and KORN). The second part is for programmers, testers and analysts, and it covers topics such as working with record files, FTP, rsync, finding large files, process monitoring, etc; the third part is aimed at system administrators, and it covers file monitoring, monitoring paging and swap space, system load , stale disk partitions, etc.
Every page of this book is gold for the brain and for our professional luggage. I strongly recommend this book to whoever wants to write anything more than a simple echo "Hello world" bash script.
Every page of this book is gold for the brain and for our professional luggage. I strongly recommend this book to whoever wants to write anything more than a simple echo "Hello world" bash script.
Most Helpful Customer Reviews on Amazon.com (beta)
Amazon.com:
21 reviews
79 of 89 people found the following review helpful
Exclusively KORN shell
15 Oct 2003
Format:Paperback|Amazon Verified Purchase
If you are interested in Bourne or Bash shell programming, be aware that this book focuses exclusively on the Korn shell (ksh or "ksh93"). The Korn shell is a superset of the Bourne shell, but if you want to write scripts for sh (Bourne) or bash, another book might be more appropriate.
16 of 16 people found the following review helpful
A must-have for all levels of *nix users.
1 Aug 2004
Format:Paperback|Amazon Verified Purchase
The breadth of real-world examples make the difference between this book and most reference texts. It's true that it's written for korn, but I've had little trouble adapting for Bash; many of the scripts run almost unchanged and the ones that don't provide a useful opportunity for exercise in adaptation. The authors prose is clear. His attitude is a bit challenging; he says early on that that his intention is to teach you how to -solve problems- by shell scripting, NOT to present a ream of canned solutions. This is NOT a reference text for any particular shell, you'll still need plenty of O'Reilly books, a web browser & etc.
This book has enabled me to write a major project using scripting as the glue to hold together a hefty mass of file-moving daemons, fax/paging engines, python UI code, PostGreSQL database engine, networking/email, SSH, and Expect scripts on a Gnu Linux platform. I absolutely could not have done it without this book and I'm very grateful to Mr Michael for his work. If a later edition could more closely serve the needs of the masses by presenting more Bash examples and maybe throwing in a CD it would be a 5-star text.
This book has enabled me to write a major project using scripting as the glue to hold together a hefty mass of file-moving daemons, fax/paging engines, python UI code, PostGreSQL database engine, networking/email, SSH, and Expect scripts on a Gnu Linux platform. I absolutely could not have done it without this book and I'm very grateful to Mr Michael for his work. If a later edition could more closely serve the needs of the masses by presenting more Bash examples and maybe throwing in a CD it would be a 5-star text.
18 of 19 people found the following review helpful
The best in the shelf
1 Jun 2004
Format:Paperback
Mastering UNIX Shell Scripting is a must for all Unix Administrator. The beauty of this book is it teaches shell script with practical examples which are required in day to day life of a System Admin. Unlike many shell scripting book it just not talks about syntax but also explains whats happening behind the curtain.
Inspite of all praises the reason for giving 4 stars is due to the fact that its not meant for beginners. For serious shell script writers this book deserve 5 star rating
Inspite of all praises the reason for giving 4 stars is due to the fact that its not meant for beginners. For serious shell script writers this book deserve 5 star rating
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