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Sams Teach Yourself Perl in 24 Hours 3RD Editionby Clinton Pierce
Synopses & ReviewsPublisher Comments:Learn Perl programming quickly and easily with 24 one-hour lessons in Sams Teach Yourself Perl in 24 Hours. The book's step-by-step lessons teach you the basics of Perl and how to apply it in web development and system administration. Plus, the third edition has been updated to include five chapters on new technologies, information on the latest version of Perl, and a look ahead to Perl 6. Sams Teach Yourself Perl in 24 Hours focuses on real-world development, teaching you how to:
Synopsis:Featuring concise, modular chapters ideal for today's working professional, this handbook explores everything one needs to know to begin producing useful CGI programs quickly. Pierce provides readers with a solid foundation in the basics of the Perl language, so they can easily move on to more advanced books and techniques. About the AuthorSams Teach Yourself Perl in 24 Hours, Third Edition#LINK Clinton Pierce is a software engineer, freelance programmer, and instructor. He has been answering questions about Perl on USENET for many years and has been writing courseware and teaching Perl to his co-workers and anyone else who will listen for about as long. He is a software engineer for a payroll company, who, when not designing middleware software to integrate legacy systems to the Web, navigating the intricacies of payroll taxes, teaching UNIX and Perl, writing books and articles, or writing programs at home Just For The Fun Of It, harbors secret dreams of being abducted by wood nymphs and living in the deep forest without technology. You can visit his Web site at http://www.geeksalad.org for updates and corrections, or just to say hello. © Copyright Pearson Education. All rights reserved. Table of ContentsIntroduction. How to Use This Book Conventions Used in This Book I. PERL FUNDAMENTALS. Hour 1: Getting Started with Perl. Installing Perl Stop! Wait! Maybe You Already Have Perl Installing Perl on Windows Installing Perl on Unix Installing Perl on Mac OS Documentation Some Special Documentation Cases What If You Can't Find the Documentation? Your First Program Typing Your First Program Running the Program It Worked! So What Happened? Perl Play-by-Play Something You Should Know Hour 2: Perl's Building Blocks: Numbers and Strings. Literals Numbers Strings Scalar Variables The Special Variable $_ Expressions and Operators Basic Operators Numeric Operators String Operators More Operators One-Operand (Unary) Operators Increment and Decrement Angle Operator (<>) More Assignment Operators A Few Words on Strings and Numbers Exercise: Interest Calculator Hour 3: Controlling the Program's Flow. Blocks The if Statement The Other Relational Operators What Truth Means to Perl Logical Operators Looping Looping with while Looping with for Other Flow Control Tools Odd Arrangements Fine-Grained Control Labels Leaving Perl Exercise: Finding Primes Hour 4: Stacking Building Blocks: Lists and Arrays. Putting Things into Lists and Arrays Arrays Getting Elements Out of an Array Finding the End of an Array Learning More about Context More about the Size and End of an Array Context with Operators and Functions Manipulating Arrays Stepping Through an Array Converting Between Arrays and Scalars Reordering Your Array Exercise: Playing a Little Game Hour 5: Working with Files. Opening Files Pathnames A Good Defense Dieing Gracefully Reading Writing Free Files, Testing Files, and Binary Data Free Filehandles Text Files and Binary Files File Test Operators Hour 6: Pattern Matching. Simple Patterns Rules of the Game The Metacharacters A Simple Metacharacter The Unprintables Quantifiers Character Classes Grouping and Alternation Anchors Substitution Exercise: Cleaning Up Input Data Pattern Matching Odds and Ends Working with Other Variables Modifiers and Multiple Matching Backreferences A New Function: grep Hour 7: Hashes. Filling Your Hash Getting Data Out of a Hash Lists and Hashes Hash Odds and Ends Testing for Keys in a Hash Removing Keys from a Hash Useful Things to Do with a Hash Determining Frequency Distributions Finding Unique Elements in Arrays Computing the Intersection and Difference of Arrays Sorting Hashes Exercise: Creating a Simple Customer Database with Perl Hour 8: Functions. Creating and Calling Subroutines Returning Values from Subroutines Arguments Passing Arrays and Hashes Scope Other Places for my Exercise: Statistics Function Footnotes Declaring Variables local Making a Stricter Perl Recursion II. ADVANCED FEATURES. Hour 9: More Functions and Operators. Searching Scalars Searching with index Searching Backward with rindex Picking Apart Scalars with substr Transliteration, Not Substitution A Better Way to print Formatted Printing with printf Specifying the Field Formats Formatted Output to a String Exercise: A Formatted Report New Ways with Arrays A List as a Stack Splicing Arrays Hour 10: Files and Directories. Getting a Directory Listing Globbing Exercise: The Unix grep Directories Navigating Directories Creating and Removing Directories Removing Files Renaming Files Unix Stuff A Crash Course in File Permissions Everything You Ever Wanted to Know About THAT File Exercise: Renaming Files En Masse Hour 11: System Interaction. The system() Function The Underlying Command Interpreter Capturing Output Avoiding Your Shell Pipes First Lesson in Portability Telling the Difference: An Example Hour 12: Using Perl's Command-Line Tools. What Is the Debugger? Starting the Debugger Basic Debugger Commands Breakpoints Other Debugger Commands Exercise: Finding the Bug Other Command-Line Stuff One-Liners Other Switches Empty Angle Brackets and More One-Liners Hour 13: References and Structures. Reference Basics References to Arrays References to Hashes References as Arguments Building Structures Recipes for Structures Example: A List of Lists Other Structures Debugging with References Exercise: Another Game, Maze Hour 14: Using Modules. A Gentle Introduction Reading the Documentation What Can Go Wrong? A Quick Tour Exploring Files and Directories Copying Files Is Anybody Out There? Once Again, in English? More Diagnostics Full List of Standard Modules Where Do You Go from Here? Hour 15: Finding Permanence. DBM Files Important Points to Know Walking Through DBM-Tied Hashes Exercise: A Free-Form Memo Pad Text Files as Databases Inserting into or Removing from a Text File Random File Access Opening Files for Read and Write Moving Around in a Read/Write File Locking Locking with Unix and Windows Reading and Writing with a Lock Locking with Windows 95 and Windows 98 Locking Elsewhere Hour 16: The Perl Community. What's Perl All About, Anyway? A Brief History of Perl Open Source The Development of Perl The Comprehensive Perl Archive Network (CPAN) What Is CPAN? Why Do People Contribute? Your Next Steps Your First Step Your Most Useful Tool Debug Your Program First, Help Yourself Learn from the Mistakes of Others When All Else Fails, Ask Another Place to Look and Ask: PerlMonks Other Resources III. APPLYING PERL. Hour 17: Writing Modules. Building a Module Calling the Module Namespaces Scoping Revisited Another statement: our Forcing Your Names on Others Example: A Module to Handle Common File Information Requests Hour 18: Object Primer. Classes, Properties, and Methods A Thought-class: Car Example: Implementation of Car in Perl Using the Car Class Example: File Information Class Using the File Information Class Hour 19: Data Processing. How to Look at Data Unstructured Data Table Data Hierarchical Data Binary Data Dealing with Table Data Example: Email Order Taker Example: Verifier for the Email Order XML Data Reading XML Using Regular Expressions Reading XML with XML::Simple Example: Extending Your Ordering System for XML Input Hour 20: Perl as a Glue Language. Weather Station Part 1: Finding Out Where You Are Part 2: Finding the Local Airport Part 3: Fetching the Weather and Putting It All Together Presenting Data as PDF Example: Weather Report as PDF Reading and Writing Excel Spreadsheets Using Perl to Create a Spreadsheet Reading the Spreadsheet Hour 21: Introduction to CGI. Browsing the Web Fetching a Static Web Page Dynamic Web Content-The CGI Don't Skip This Section The Checklist Your First CGI Program Installing the CGI Program on the Server Running Your CGI Program What to Do When Your CGI Program Doesn't Work Is It Your CGI Program? Server Problems Fixing Internal Server or 500 Errors Hour 22: Basic Forms. How Forms Work Short Review of HTML Form Elements What Happens When You Click Submit? Passing Information to Your CGI Program GET and POST Methods Web Security 101 A Clear Link Watching for Insecure Data Doing the Impossible Denial of Service A Guestbook Hour 23: Complex Forms. The Stateless Web Hidden Fields The Online Store A Multipage Survey Hour 24: Manipulating HTTP and Cookies. The HTTP Conversation Example: Fetching a Page Manually Redirection More Details on Calling CGI Programs Passing Parameters to CGI Programs Special Parameter Considerations Cookies How to Make Cookies Example: Using Cookies Restricting Cookies Long Term Cookies Problems with Cookies Cookies Are Ephemeral Cookies Aren't Always Supported Some People Don't Like Cookies IV. APPENDIXES. Appendix A: Installing Modules. Picking the Right Module Installing the Modules Under Windows UNIX, Using CPAN UNIX, The Hard Way Mac OS X What to Do When You're Not Allowed to Install Modules Using Modules Installed in Strange Places Index. What Our Readers Are SayingBe the first to add a comment for a chance to win!Product Details
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