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Practical Guide to UNIX for Mac OS X Users, A

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Practical Guide to UNIX for Mac OS X Users, A

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  • Copyright 2006
  • Dimensions: 7-3/8" x 9-1/4"
  • Edition: 1st
  • eBook (Watermarked)
  • ISBN-10: 0-321-63053-X
  • ISBN-13: 978-0-321-63053-7

The Most Useful UNIX Guide for Mac OS X Users Ever, with Hundreds of High-Quality Examples!

Beneath Mac OS® X's stunning graphical user interface (GUI) is the most powerful operating system ever created: UNIX®. With unmatched clarity and insight, this book explains UNIX for the Mac OS X user—giving you total control over your system, so you can get more done, faster. Building on Mark Sobell's highly praised A Practical Guide to the UNIX System, it delivers comprehensive guidance on the UNIX command line tools every user, administrator, and developer needs to master–together with the world's best day-to-day UNIX reference.

This book is packed with hundreds of high-quality examples. From networking and system utilities to shells and programming, this is UNIX from the ground up—both the "whys" and the "hows"—for every Mac user. You'll understand the relationships between GUI tools and their command line counterparts. Need instant answers? Don't bother with confusing online "manual pages": rely on this book's example-rich, quick-access, 236-page command reference!

Don't settle for just any UNIX guidebook. Get one focused on your specific needs as a Mac user!

A Practical Guide to UNIX® for Mac OS® X Users is the most useful, comprehensive UNIX tutorial and reference for Mac OS X and is the only book that delivers

  • Better, more realistic examples covering tasks you'll actually need to perform
  • Deeper insight, based on the authors' immense knowledge of every UNIX and OS X nook and cranny
  • Practical guidance for experienced UNIX users moving to Mac OS X
  • Exclusive discussions of Mac-only utilities, including plutil, ditto, nidump, otool, launchctl, diskutil, GetFileInfo, and SetFile
  • Techniques for implementing secure communications with ssh and scp—plus dozens of tips for making your OS X system more secure
  • Expert guidance on basic and advanced shell programming with bash and tcsh
  • Tips and tricks for using the shell interactively from the command line
  • Thorough guides to vi and emacs designed to help you get productive fast, and maximize your editing efficiency
  • In-depth coverage of the Mac OS X filesystem and access permissions, including extended attributes and Access Control Lists (ACLs)
  • A comprehensive UNIX glossary
  • Dozens of exercises to help you practice and gain confidence
  • And much more, including a superior introduction to UNIX programming tools such as awk, sed, otool, make, gcc, gdb, and CVS

Sample Content

Table of Contents

Preface xxvii

Chapter 1: Welcome to Linux 1

The GNU-Linux Connection 2

The Heritage of Linux: UNIX 5

What Is So Good About Linux? 6

Overview of Linux 10

Additional Features of Linux 15

Chapter Summary 16

Exercises 17

Part I: The Linux Operating System 19

Chapter 2: Getting Started 21

Conventions Used in This Book 22

Logging In 24

Working with the Shell 25

Curbing Your Power: Superuser Access 28

Getting the Facts: Where to Find Documentation 29

More About Logging In 35

Chapter Summary 38

Exercises 39

Advanced Exercises 39

Chapter 3: Command Line Utilities 41

Special Characters 42

Basic Utilities 43

Working with Files 45

| (Pipe): Communicates Between Processes 52

Four More Utilities 53

Compressing and Archiving Files 56

Locating Commands 61

Obtaining User and System Information 63

Communicating with Other Users 67

Email 69

Chapter Summary 69

Exercises 72

Advanced Exercises 73

Chapter 4: The Linux Filesystem 75

The Hierarchical Filesystem 76

Directory and Ordinary Files 77

Working with Directories 88

Access Permissions 91

Links 96

Chapter Summary 102

Exercises 103

Advanced Exercises 105

Chapter 5: The Shell 107

The Command Line 108

Standard Input and Standard Output 113

Running a Program in the Background 125

Filename Generation/Pathname Expansion 127

Builtins 132

Chapter Summary 133

Exercises 134

Advanced Exercises 136

Part II: The Editors 137

Chapter 6: The vim Editor 139

History 140

Tutorial: Creating and Editing a File with vim 141

The compatible Parameter 148

Introduction to vim Features 148

Command Mode: Moving the Cursor 154

Input Mode 158

Command Mode: Deleting and Changing Text 160

Searching and Substituting 164

Miscellaneous Commands 170

Yank, Put, and Delete Commands 171

Reading and Writing Files 174

Setting Parameters 175

Advanced Editing Techniques 180

Units of Measure 184

Chapter Summary 188

Exercises 193

Advanced Exercises 194

Chapter 7: The emacs Editor 195

History 196

Tutorial: Getting Started with emacs 198

Basic Editing Commands 204

Online Help 209

Advanced Editing 212

Language-Sensitive Editing 225

Customizing emacs 235

More Information 240

Chapter Summary 241

Exercises 248

Advanced Exercises 250

Part III: The Shells 253

Chapter 8: The Bourne Again Shell 255

Background 256

Shell Basics 257

Parameters and Variables 277

Processes 292

History 295

Aliases 312

Functions 315

Controlling bash Features and Options 318

Processing the Command Line 322

Chapter Summary 332

Exercises 334

Advanced Exercises 336

Chapter 9: The TC Shell 339

Shell Scripts 340

Entering and Leaving the TC Shell 341

Features Common to the Bourne Again and TC Shells 343

Redirecting Standard Error 349

Working with the Command Line 350

Variables 355

Control Structures 368

Builtins 377

Chapter Summary 381

Exercises 382

Advanced Exercises 384

Part IV: Programming Tools 385

Chapter 10: Programming Tools 387

Programming in C 388

Using Shared Libraries 396

make: Keeps a Set of Programs Current 399

Debugging C Programs 407

Threads 417

System Calls 417

Source Code Management 420

Chapter Summary 430

Exercises 431

Advanced Exercises 432

Chapter 11: Programming the Bourne Again Shell 435

Control Structures 436

File Descriptors 470

Parameters and Variables 474

Builtin Commands 487

Expressions 501

Shell Programs 510

Chapter Summary 520

Exercises 522

Advanced Exercises 524

Chapter 12: The gawk Pattern Processing Language 527

Syntax 528

Arguments 528

Options 529

Notes 529

Language Basics 530

Examples 537

Advanced gawk Programming 554

Error Messages 559

Chapter Summary 560

Exercises 561

Advanced Exercises 561

Chapter 13: The sed Editor 563

Syntax 564

Arguments 564

Options 564

Editor Basics 565

Examples 568

Chapter Summary 578

Exercises 579

Part V: Command Reference 581

Standard Multiplicative Suffixes 586

Common Options 587

The sample Utility 587

sample: Very brief description of what the utility does 588

aspell: Checks a file for spelling errors 589

at: Executes commands at a specified time 593

bzip2: Compresses or decompresses files 596

cal: Displays a calendar 598

cat: Joins and displays files 599

cd: Changes to another working directory 601

chgrp: Changes the group associated with a file 603

chmod: Changes the access mode (permissions) of a file 604

chown: Changes the owner of a file and/or the group the file is associated with 608

cmp: Compares two files 610

comm: Compares sorted files 612

configure: Configures source code automatically 614

cp: Copies files 616

cpio: Creates an archive or restores files from an archive 619

crontab: Maintains crontab files 624

cut: Selects characters or fields from input lines 627

date: Displays or sets the system time and date 630

dd: Converts and copies a file 633

df: Displays disk space usage 636

diff: Displays the differences between two files 638

du: Displays information on disk usage by file 644

echo: Displays a message 647

expr: Evaluates an expression 649

file: Displays the classification of a file 653

find: Finds files based on criteria 655

finger: Displays information about users 661

fmt: Formats text very simply 664

fsck: Checks and repairs a filesystem 666

ftp: Transfers files over a network 671

gcc: Compiles C and C++ programs 678

grep: Searches for a pattern in files 683

gzip: Compresses or decompresses files 688

head: Displays the beginning of a file 691

kill: Terminates a process by PID 693

killall: Terminates a process by name 695

less: Displays text files, one screen at a time 697

ln: Makes a link to a file 702

lpr: Sends files to printers 705

ls: Displays information about one or more files 708

make: Keeps a set of programs current 715

man: Displays documentation for commands 721

mkdir: Creates a directory 724

mkfs: Creates a filesystem on a device 725

Mtools: Uses DOS-style commands on files and directories 728

mv: Renames or moves a file 732

nice: Changes the priority of a command 734

nohup: Runs a command that keeps running after you log out 736

od: Dumps the contents of a file 737

paste: Joins corresponding lines from files 742

pr: Paginates files for printing 744

ps: Displays process status 746

rcp: Copies one or more files to or from a remote system 750

rlogin: Logs in on a remote system 752

rm: Removes a file (deletes a link) 753

rmdir: Removes a directory 755

rsh: Executes commands on a remote system 756

scp: Securely copies one or more files to or from a remote system 758

sleep: Creates a process that sleeps for a specified interval 760

sort: Sorts and/or merges files 762

split: Divides a file in into sections 771

ssh: Securely executes commands on a remote system 773

strings: Displays strings of printable characters 777

stty: Displays or sets terminal parameters 778

tail: Displays the last part (tail) of a file 783

tar: Stores or retrieves files to/from an archive file 786

tee: Copies standard input to standard output and one or more files 791

telnet: Connects to a remote system over a network 792

test: Evaluates an expression 794

top: Dynamically displays process status 798

touch: Changes a file's access and/or modification time 801

tr: Replaces specified characters 804

tty: Displays the terminal pathname 807

tune2fs: Changes parameters on an ext2 or ext3 filesystem 808

umask: Establishes the file-creation permissions mask 810

uniq: Displays unique lines 812

w: Displays information about system users 814

wc: Displays the number of lines, words, and bytes 816

which: Shows where in PATH a command is located 817

who: Displays information about logged-in users 819

xargs: Converts standard input into command lines 821

Part VI: Appendixes 825

Appendix A: Regular Expressions 827

Characters 828

Delimiters 828

Simple Strings 828

Special Characters 828

Rules 831

Bracketing Expressions 832

The Replacement String 833

Extended Regular Expressions 834

Appendix Summary 835

Appendix B: Help 837

Solving a Problem 838

Finding Linux-Related Information 839

Specifying a Terminal 844

Appendix C: Keeping the System Up-to-Date 847

yum: Updates and Installs Packages 848

Apt: An Alternative to yum 850

BitTorrent 855

Glossary 859

Index 913


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