| Pro Bash Programming: Scripting the Linux Shell Contributor(s): Johnson, Chris (Author) |
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ISBN: 1430219971 ISBN-13: 9781430219972 Publisher: Apress OUR PRICE: $62.99 Product Type: Paperback Published: October 2009 Annotation: Written for beginning Linux and Unix system administrators who want to be in full command of their systems, this guide offers complete coverage of the bash shell programming language as it helps users master bash 4.0 features. |
| Additional Information |
| BISAC Categories: - Computers | Software Development & Engineering - General - Computers | Programming - Open Source |
| Dewey: 005.437 |
| LCCN: 2011499565 |
| Series: Expert's Voice in Linux |
| Physical Information: 0.6" H x 7.4" W x 9.2" (1.00 lbs) 350 pages |
| Descriptions, Reviews, Etc. |
| Publisher Description: Introduction Although most users think of the shell as an interactive command interpreter, it is really a programming language in which each statement runs a command. Because it must satisfy both the interactive and programming aspects of command execution, it is a strange language, shaped as much by history as by design. Brian Kernighan and Rob Pike, The UNIX Programming Environment, Prentice-Hall, 1984 The shell is a programming language. Don't let anyone tell you otherwise. The shell is not just glue that sticks bits together. The shell is a lot more than a tool that runs other tools. The shell is a complete programming language! When a Linux user asked me about membership databases, I asked him what he really needed. He wanted to store names and addresses for a couple of hundred members and print mailing labels for each of them. I recommended using a text editor to store the information in a text file, and I provided a shell script to create the labels in PostScript. (The script, ps-labels, appeared in my first book, Shell Scripting Recipes: A Problem-Solution Approach. ) When the SWEN worm was dumping hundreds of megabytes of junk into my mailbox every few minutes, I wrote a shell script to filter them out on the mail server and download the remaining mail to my home computer. That script has been doing its job for several years. |