bash.Cookbook.pdf

bash Cookbook ™

Carl Albing, JP Vossen, and Cameron Newham

Beijing • Cambridge • Farnham • Köln • Paris • Sebastopol • Taipei • Tokyo

bash Cookbook ™

by Carl Albing, JP Vossen, and Cameron Newham

Printed in the United States of America.

Published by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472.

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Editor: Mike Loukides

Production Editor: Laurel R.T. Ruma

Copyeditor: Derek Di Matteo

Production Services: Tolman Creek Design

Cover Designer: Karen Montgomery

Interior Designer: David Futato

Illustrators: Robert Romano and Jessamyn Read

Printing History:

May 2007:

First Edition.

Nutshell Handbook, the Nutshell Handbook logo, and the O’Reilly logo are registered trademarks of

O’ReillyMedia,Inc. bash Cookbook ,theimageofawoodturtle,andrelatedtradedressaretrademarks

of O’Reilly Media, Inc.

Manyofthedesignationsusedbymanufacturersandsellerstodistinguishtheirproductsareclaimedas

trademarks. Where those designations appear in this book, and O’Reilly Media, Inc. was aware of a

trademark claim, the designations have been printed in caps or initial caps.

While every precaution has been taken in the preparation of this book, the publisher and authors

assume no responsibility for errors or omissions, or for damages resulting from the use of the

information contained herein.

This book uses RepKover ™ , a durable and flexible lay-flat binding.

ISBN 10: 0-596-52678-4

ISNB 13: 978-0-596-52678-8

[M]

Table of Contents

Preface

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

1. Beginning bash

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1 Decoding the Prompt

1.2 Showing Where You Are

1.3 Finding and Running Commands

1.4 Getting Information About Files

1.5 Showing All Hidden (dot) Files in the Current Directory

1.6 Using Shell Quoting

1.7 Using or Replacing Built-ins and External Commands

1.8 Determining If You Are Running Interactively

1.9 Setting bash As Your Default Shell

1.10 Getting bash for Linux

1.11 Getting bash for xBSD

1.12 Getting bash for Mac OS X

1.13 Getting bash for Unix

1.14 Getting bash for Windows

1.15 Getting bash Without Getting bash

1.16 Learning More About bash Documentation

2. Standard Output

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1 Writing Output to the Terminal/Window

2.2 Writing Output but Preserving Spacing

2.3 Writing Output with More Formatting Control

2.4 Writing Output Without the Newline

2.5 Saving Output from a Command

2.6 Saving Output to Other Files

iii

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