index-1.htm

prrl 5 programs codes in the book

<UL>

<LI><A HREF="ch18.htm#TheServerSideofaConversation" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#TheServerSideofaConversation">

The Server Side of a Conversation</A>

<LI><A HREF="ch18.htm#TheClientSideofaConversation" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#TheClientSideofaConversation">

The Client Side of a Conversation</A>

</UL>

<LI><A HREF="ch18.htm#UsingtheTimeService" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#UsingtheTimeService">

Using the Time Service</A>

<LI><A HREF="ch18.htm#SendingMailSMTP" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#SendingMailSMTP">

Sending Mail (SMTP)</A>

<UL>

<LI><A HREF="ch18.htm#TheTTFONTSIZEFACECourierMAILFONTTTFONTSIZECommandFONT" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#TheTTFONTSIZEFACECourierMAILFONTTTFONTSIZECommandFONT">

The <TT>MAIL</TT>

Command</FONT></A>

<LI><A HREF="ch18.htm#TheTTFONTSIZEFACECourierRCPTFONTTTFONTSIZECommandFONT" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#TheTTFONTSIZEFACECourierRCPTFONTTTFONTSIZECommandFONT">

The <TT>RCPT </TT>Command</FONT>

</A>

<LI><A HREF="ch18.htm#TheTTFONTSIZEFACECourierDATAFONTTTFONTSIZECommandFONT" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#TheTTFONTSIZEFACECourierDATAFONTTTFONTSIZECommandFONT">

The <TT>DATA</TT>

Command</FONT></A>

<LI><A HREF="ch18.htm#ReportingUndeliverableMail" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#ReportingUndeliverableMail">

Reporting Undeliverable Mail</A>

<LI><A HREF="ch18.htm#UsingPerltoSendMail" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#UsingPerltoSendMail">

Using Perl to Send Mail</A>

</UL>

<LI><A HREF="ch18.htm#ReceivingMailPOP" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#ReceivingMailPOP">

Receiving Mail (POP)</A>

<LI><A HREF="ch18.htm#CheckingforUpnessEcho" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#CheckingforUpnessEcho">

Checking for Upness (Echo)</A>

<LI><A HREF="ch18.htm#TransferringFilesFTP" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#TransferringFilesFTP">

Transferring Files (FTP)</A>

<LI><A HREF="ch18.htm#ReadingtheNewsNNTP" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#ReadingtheNewsNNTP">

Reading the News (NNTP)</A>

<LI><A HREF="ch18.htm#TheWorldWideWebHTTP" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#TheWorldWideWebHTTP">

The World Wide Web (HTTP)</A>

<LI><A HREF="ch18.htm#Summary" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#Summary">

Summary</A>

<LI><A HREF="ch18.htm#ReviewQuestions" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#ReviewQuestions">

Review Questions</A>

<LI><A HREF="ch18.htm#ReviewExercises" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch18.htm#ReviewExercises">

Review Exercises</A>

</UL>



<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter </FONT></I><FONT SIZE=5 COLOR=#FF0000>19

</FONT><FONT SIZE=5>&nbsp;&nbsp;What Is CGI?</FONT></H2>

<UL>

<LI><A HREF="ch19.htm#WhyUsePerlforCGI" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#WhyUsePerlforCGI">

Why Use Perl for CGI?</A>

<LI><A HREF="ch19.htm#CGIAppsversusJavaApplets" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#CGIAppsversusJavaApplets">

CGI Apps versus Java Applets</A>

<LI><A HREF="ch19.htm#ShouldYouUseCGIModules" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#ShouldYouUseCGIModules">

Should You Use CGI Modules?</A>

<LI><A HREF="ch19.htm#HowDoesCGIWork" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#HowDoesCGIWork">

How Does CGI Work?</A>

<LI><A HREF="ch19.htm#CallingYourCGIProgram" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#CallingYourCGIProgram">

Calling Your CGI Program</A>

<LI><A HREF="ch19.htm#YourFirstCGIProgram" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#YourFirstCGIProgram">

Your First CGI Program</A>

<LI><A HREF="ch19.htm#WhyAreFilePermissionsImportantinUNIX" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#WhyAreFilePermissionsImportantinUNIX">

Why Are File Permissions Important in UNIX?</A>

<LI><A HREF="ch19.htm#HTTPHeaders" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#HTTPHeaders">

HTTP Headers</A>

<LI><A HREF="ch19.htm#CGIandEnvironmentVariables" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#CGIandEnvironmentVariables">

CGI and Environment Variables</A>

<LI><A HREF="ch19.htm#URLENCoding" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#URLENCoding">

URL ENCoding</A>

<LI><A HREF="ch19.htm#Security" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#Security">

Security</A>

<LI><A HREF="ch19.htm#CGIwrapandSecurity" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#CGIwrapandSecurity">

CGIwrap and Security</A>

<LI><A HREF="ch19.htm#Cookies" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#Cookies">

Cookies</A>

<UL>

<LI><A HREF="ch19.htm#CookieSecurity" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#CookieSecurity">

Cookie Security</A>

<LI><A HREF="ch19.htm#HowAreCookiesCreatedandRead" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#HowAreCookiesCreatedandRead">

How Are Cookies Created and Read?</A>

<LI><A HREF="ch19.htm#CanaVisitorsBrowserSupportCookies" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#CanaVisitorsBrowserSupportCookies">

Can a Visitor's Browser Support Cookies?</A>

</UL>

<LI><A HREF="ch19.htm#DebuggingCGIPrograms" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#DebuggingCGIPrograms">

Debugging CGI Programs</A>

<UL>

<LI><A HREF="ch19.htm#SendingOutputtotheServersLogFile" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#SendingOutputtotheServersLogFile">

Sending Output to the Server's Log File</A>

<LI><A HREF="ch19.htm#SendingSTDERRtotheWebBrowser" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#SendingSTDERRtotheWebBrowser">

Sending STDERR to the Web Browser</A>

<LI><A HREF="ch19.htm#CGITap" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#CGITap">

CGITap</A>

<LI><A HREF="ch19.htm#GeneratinganErrorHTMLPage" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#GeneratinganErrorHTMLPage">

Generating an Error HTML Page</A>

</UL>

<LI><A HREF="ch19.htm#Summary" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#Summary">

Summary</A>

<LI><A HREF="ch19.htm#ReviewQuestions" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#ReviewQuestions">

Review Questions</A>

<LI><A HREF="ch19.htm#ReviewExercises" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch19.htm#ReviewExercises">

Review Exercises</A>

</UL>



<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter </FONT></I><FONT SIZE=5 COLOR=#FF0000>20

</FONT><FONT SIZE=5>&nbsp;&nbsp;Form Processing</FONT></H2>

<UL>

<LI><A HREF="ch20.htm#ABriefOverviewofHTML" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch20.htm#ABriefOverviewofHTML">

A Brief Overview of HTML</A>

<LI><A HREF="ch20.htm#ServerSideINCludes" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch20.htm#ServerSideINCludes">

Server-Side INCludes</A>

<LI><A HREF="ch20.htm#HTMLForms" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch20.htm#HTMLForms">

HTML Forms</A>

<LI><A HREF="ch20.htm#HandlingFormInformation" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch20.htm#HandlingFormInformation">

Handling Form Information</A>

<LI><A HREF="ch20.htm#FillinginaFormandMailingtheInformation" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch20.htm#FillinginaFormandMailingtheInformation">

Filling in a Form and Mailing the Information</A>

<LI><A HREF="ch20.htm#DebuggingFormProcessingCGIScripts" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch20.htm#DebuggingFormProcessingCGIScripts">

Debugging Form Processing CGI Scripts</A>

<LI><A HREF="ch20.htm#CreatingaGuestbookforYourSite" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch20.htm#CreatingaGuestbookforYourSite">

Creating a Guestbook for Your Site</A>

<UL>

<LI><A HREF="ch20.htm#TheBasicGuestbook" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch20.htm#TheBasicGuestbook">

The Basic Guestbook</A>

</UL>

<LI><A HREF="ch20.htm#Summary" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch20.htm#Summary">

Summary</A>

<LI><A HREF="ch20.htm#ReviewQuestions" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch20.htm#ReviewQuestions">

Review Questions</A>

<LI><A HREF="ch20.htm#ReviewExercises" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch20.htm#ReviewExercises">

Review Exercises</A>

</UL>



<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter </FONT></I><FONT SIZE=5 COLOR=#FF0000>21

</FONT><FONT SIZE=5>&nbsp;&nbsp;Using Perl with Web Servers</FONT></H2>

<UL>

<LI><A HREF="ch21.htm#ServerLogFiles" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#ServerLogFiles">

Server Log Files</A>

<UL>

<LI><A HREF="ch21.htm#ExampleReadingaLogFile" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#ExampleReadingaLogFile">

Example: Reading a Log File</A>

<LI><A HREF="ch21.htm#ExampleListingAccessbyDocument" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#ExampleListingAccessbyDocument">

Example: Listing Access by Document</A>

<LI><A HREF="ch21.htm#ExampleLookingattheStatusCode" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#ExampleLookingattheStatusCode">

Example: Looking at the Status Code</A>

<LI><A HREF="ch21.htm#ExampleConvertingtheReporttoaWebPage" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#ExampleConvertingtheReporttoaWebPage">

Example: Converting the Report to a Web Page</A>

<LI><A HREF="ch21.htm#ExistingLogFileAnalyzingPrograms" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#ExistingLogFileAnalyzingPrograms">

Existing Log File Analyzing Programs</A>

<LI><A HREF="ch21.htm#CreatingYourOwnCGILogFile" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#CreatingYourOwnCGILogFile">

Creating Your Own CGI Log File</A>

</UL>

<LI><A HREF="ch21.htm#CommunicatingwithUsers" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#CommunicatingwithUsers">

Communicating with Users</A>

<UL>

<LI><A HREF="ch21.htm#ExampleGeneratingaWhatsNewPage" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#ExampleGeneratingaWhatsNewPage">

Example: Generating a What's New Page</A>

<LI><A HREF="ch21.htm#ExampleGettingUserFeedback" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#ExampleGettingUserFeedback">

Example: Getting User Feedback</A>

</UL>

<LI><A HREF="ch21.htm#Summary" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#Summary">

Summary</A>

<LI><A HREF="ch21.htm#ReviewExercises" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch21.htm#ReviewExercises">

Review Exercises</A>

</UL>



<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter </FONT></I><FONT SIZE=5 COLOR=#FF0000>22

</FONT><FONT SIZE=5>&nbsp;&nbsp;Internet Resources</FONT></H2>

<UL>

<LI><A HREF="ch22.htm#UsenetNewsgroups" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch22.htm#UsenetNewsgroups">

Usenet Newsgroups</A>

<LI><A HREF="ch22.htm#WebSites" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch22.htm#WebSites">

Web Sites</A>

<UL>

<LI><A HREF="ch22.htm#ThePerlLanguageHomePage" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch22.htm#ThePerlLanguageHomePage">

The Perl Language Home Page</A>

<LI><A HREF="ch22.htm#PearlsofWisdombyLarryWall" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch22.htm#PearlsofWisdombyLarryWall">

Pearls of Wisdom by Larry Wall</A>

<LI><A HREF="ch22.htm#Yahoo" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch22.htm#Yahoo">

Yahoo</A>

<LI><A HREF="ch22.htm#TheCGIpmModule" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch22.htm#TheCGIpmModule">

The CGI.pm Module</A>

<LI><A HREF="ch22.htm#SelinaSolsCGIScriptArchive" tppabs="http://cheminf.nankai.edu.cn/~eb~/Perl%205%20By%20Example/ch22.htm#SelinaSolsCGIScriptArchive">

Selina Sol's CGI Script Archive</A>

<LI><A HREF="ch22.htm#TheWebDevelopersVirtualLibrary" tppab