In the days before personal computers, BASIC was the easy
programming language to learn, and serious programmers learned
FORTRAN or COBOL to do ’real work.’ Today, many people
have discovered that Perl is both a great beginning programming
language and one that enables them to write powerful programs
with little effort.
If you’re interested in discovering how to program (or how
others program), Perl For Dummies, 4th Edition, is for you.
If you already know something about programming (but not about
Perl), this book is also for you. If you’re already an expert
programmer, you’re still welcome to read this book; you can
just skip the basic stuff (you never know what kind of new tips and
tricks you’ll pick up).
This reference guide shows you how to use Perl under many
different operating systems, such as UNIX, many flavors of Windows
(Windows 95/98, Windows NT, Windows 2000, Windows Me, and Windows
XP), and Macintosh OS 9 and OS X; in fact, Perl runs on many more
operating systems than these.
Here’s a sampling of what Perl For Dummies, 4th Edition,
has to offer:
* Installing Perl on various platforms
* Nailing down the basics of building Perl programs
* Working with text and numbers
* Constructing lists and working with them
* Creating conditionals and loops
* Delving into more advanced features such as operators and
functions
* Reading and writing files and directories
* Using subroutines for modularity
* Demystifying Web server programs
* Creating your own Internet clients
The Perl programming language enables you to write fully working
computer programs with just a few steps. It’s particularly
good at common programming tasks, such as reading and writing text
files, but it also excels at reducing the work that programmers
have to do. Perl For Dummies, 4th Edition, shows you how to
do all of that and how to modify programs to your heart’s
content. After all, one of the common phrases in the world of Perl
programmers is, ’There’s more than one way to do
it.’
Innehållsförteckning
Introduction 1
Part I: Getting Started with Perl 5
Chapter 1: Perl’s Place in the Programming World 7
Chapter 2: Running Perl on Your Computer 17
Chapter 3: Diving into the Guts of Perl 35
Chapter 4: A Perl Program Tour, Times Two 51
Part II: The Basic Perl Programming Ingredients 69
Chapter 5: Terrific Text 71
Chapter 6: Nifty Numbers 91
Chapter 7: Learning to Love Lists and Hashes 103
Chapter 8: Creating Cool Conditionals and Lovely Loops 133
Chapter 9: Doing Advanced Stuff with Operators and Functions 151
Part III: The Nuts and Bolts of Perl 169
Chapter 10: The Files Go In, The Files Go Out 171
Chapter 11: Beyond File and Directory Basics 189
Chapter 12: Stringing Along: Pattern Matching and Regular Expressions 201
Chapter 13: Looking Like a Pro: Subroutines, Imported Code, and Graceful Exits 223
Part IV: Advanced Perl Demystified 239
Chapter 14: Perl and CGI: Web Server Programs Demystified 241
Chapter 15: Perl Gets Cozy with the Web, E-Mail, and the Rest of the Internet 263
Chapter 16: Using Perl as a Gateway to XML and Web Services 277
Chapter 17: Dancing with Databases 295
Chapter 18: Controlling Your Computer from Perl 299
Chapter 19: Object-Oriented Perl 305
Part V: The Part of Tens 315
Chapter 20: Ten Guidelines for Programming with Style 317
Chapter 21: Ten Really Short, Really Useful Perl Programs 325
Part VI: Appendix 331
Appendix: The Great Perl Reference 333
Index 361
Om författaren
Paul Hoffman has written and contributed to numerous Internet standards. He’s a 20-year Internet veteran and the author of more than a dozen computer books.
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