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Product Description
Product Description
Unix Shell Programming is a tutorial aimed at helping Unix and Linux users get optimal performance out of their operating out of their operating system. It shows them how to take control of their systems and work efficiently by harnessing the power of the shell to solve common problems. The reader learns everything he or she needs to know to customize the way a Unix system responds.
The vast majority of Unix users utilize the Korn shell or some variant of the Bourne shell, such as bash. Three are covered in the third edition of Unix Shell Programming. It begins with a generalized tutorial of Unix and tools and then moves into detailed coverage of shell programming.
Topics covered include: regular expressions, the kernel and the utilities, command files, parameters, manipulating text filters, understanding and debugging shell scripts, creating and utilizing variables, tools, processes, and customizing the shell.
From the Back Cover
Unix Shell Programming is a tutorial aimed at helping Unix and Linux users get optimal performance out of their operating out of their operating system. It shows them how to take control of their systems and work efficiently by harnessing the power of the shell to solve common problems. The reader learns everything he or she needs to know to customize the way a Unix system responds.
The vast majority of Unix users utilize the Korn shell or some variant of the Bourne shell, such as bash. Three are covered in the third edition of Unix Shell Programming. It begins with a generalized tutorial of Unix and tools and then moves into detailed coverage of shell programming.
Topics covered include: regular expressions, the kernel and the utilities, command files, parameters, manipulating text filters, understanding and debugging shell scripts, creating and utilizing variables, tools, processes, and customizing the shell.
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Customer Reviews
The book has been updated so that the examples shown are now in the POSIX shell which has slightly different syntax to other more widely used shells but the book does give alternative syntax in case your machine doesn't have the POSIX shell available.
The first edition is the book I bought to learn shell scripting with back in 1991 and I can remember getting really hacked off that the book didn't have answers to the exercises. This second edition solves this by having a supporting website where you can see the answers, note the errata and even download the examples! (You couldn't do that easily in 1991)
I haven't given it 5 stars because of the book's use of the POSIX shell in the examples - and you have to hunt for the alternative syntax - which might be confusing for beginners. Fortunately, most of the shells are having POSIX functionality added to them so they're slowly becoming POSIX compliant.
However, in the meantime any sysadmin worth their salt can always install the POSIX shell, all the commercial UNIX distos and most of the Linux distos have it.
The only downside for me was that the really hard exercises don't have worked solutions (but it's fun trying out possible solutions). You can probably tell I'm a techie, so from one techie to another, this book is a must for any unix beginner.
..mind you, the only problem I ever found with it was, people keep on stealing :) - I'm currently on my fifth copy !!
I bought this book along with "learning bash" also from O'Reilly, Great combo. Read more
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