Mastering Unix Shell Scripting

Randall K. Michael

680 pages, parution le 18/03/2003

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Résumé

Discover how to solve real-world system administration problems with this collection of end-to-end shell scripts
This comprehensive book takes you step-by-step through the process of writing shell scripts to solve real-world Unix problems and tasks. Each chapter begins by presenting a typical Unix challenge that you'll most likely experience at your job. With each challenge, you'll learn how to identify a specific goal and start the shell script by defining the correct command syntax to solve the problem. You'll find out how to build the shell script around the commands, filter the commands output to strip out the unneeded data, and add options that give users more flexibility on the command line.
The approach used will teach you how to attack problems logically. It will also empower you to take the basic command syntax and turn it into a shell scripting solution.
Throughout the book, you'll find end-to-end shell scripts that you can use to automate repetitive tasks and solve real-world system administration problems. These tasks include:
Communications such as automated event notification, monitoring processes locally and on remote systems, and automated FTP file transfers
Information gathering and monitoring for file systems, paging/swap space, system load, applications, processes, and capturing the system's configuration
Print queue management to keep the printers printing
Floating point mathematics in shell scripts using the bc utility
The companion Web site contains all of the shell scripts and most of the functions that are discussed in the book as well as bonus shell scripts for various tasks.

Contents

Introduction
Scripting Quick Start and Review
Twelve Ways to Process a File Line by Line
Automated Event Notification
Progress Indicator Using a Series of Dots, a Rotating Line, or a Countdown to Zero
File System Monitoring
Monitoring Paging and Swap Space
Monitoring System Load
Process Monitoring and Enabling Preprocess, Startup, and Postprocess Events
Monitoring Processes and Applications
Creating Pseudo-Random Passwords
Monitor for Stale Disk Partitions
Automated Hosts Pinging with Notification
Taking a System Snapshot
Compiling, Installing, Configuring, and Using sudo
hgrep: Highlighted grep Script
Print Queue Hell: Keeping the Printers Printing
Automated FTP Stuff
Finding "Large" Files
Monitoring and Auditing User Key Strokes
Turning On/Off SSA Identification Lights
Pseudo-Random Number Generation
Floating-Point Math and the bc Utility
Scripts for Number Base Conversions
M enu Program Suitable for Operations Staff
Sending Pop-Up Messages from Unix to Windows
Appendix A: What's on the Web Site

Caractéristiques techniques

	PAPIER
Éditeur(s)	Wiley
Auteur(s)	Randall K. Michael
Parution	18/03/2003
Nb. de pages	680
Format	18,5 x 23,5
Couverture	Broché
Poids	1030g
Intérieur	Noir et Blanc
EAN13	9780471218210
ISBN13	978-0-471-21821-0