Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO

<< < 1 2 3 4 5 6 7 8 > >>   ∑:177  Sort:Date

File Test Operators
This section provides a tutorial example on using file test operators to return information about a file or a directory in the file system. For example, -e tests if a file exists or not. 2022-10-10, ∼268🔥, 0💬

Using Scalar Variables
This section describes how a scalar variable can be assigned with a scalar value. An unassigned scalar variable contains the (undef) value. The undef() function removes the assigned value from a scalar variable. 2022-10-08, ∼268🔥, 0💬

CGI (Common Gateway Interface)
This chapter provides tutorial examples and notes on CGI (Common Gateway Interface). Topics include CGI protocol specifications; environment variables provided by IIS; CGI query string; CGI example program. 2022-11-02, ∼267🔥, 0💬

LWP::UserAgent and Web Site Testing
This chapter provides tutorial examples and notes about using LWP::UserAgent Perl class. Topics include introduction of LWP::UserAgent, HTTP::Request, HTTP:Response, and HTTP::Cookies classes; using get(), post() and request() methods to send HTTP requests with GET or POST; following HTTP redirects;... 2022-10-07, ∼267🔥, 0💬

perl.exe vs. perlis.dll
This section describes differences between perl.exe and perlis.dll. A performance test program is provided to measure the performance of perlis.dll. 2022-10-05, ∼267🔥, 0💬

HTTP::Cookies save() not Saving Temporary Cookies
This section provides a tutorial example showing that the save() method in the HTTP::Cookies class does not save any temporary (non-persistent) cookies to the cookie jar file. 2022-10-04, ∼267🔥, 0💬

Install Imager::File::PNG Manually
This section provides a tutorial example on how to install Imager::File::PNG Perl module manually from source code files on macOS. Installation failed with wrong architecture in LIBPNG library. 2022-11-03, ∼266🔥, 0💬

References
List of reference materials used in this book. 2022-11-19, ∼265🔥, 0💬

gethostbyaddr() - Network Utility Functions
This section provides a tutorial example on how to use network utility functions to get default port numbers of standard network services, or get the host name on the network by a given IP address. 2022-10-28, ∼265🔥, 0💬

Running Perl Scripts in "htdocs"
This section describes how to change Apache HTTP server configuration and run Perl CGI (Common Gateway Interface) scripts in the default DocumentRoot directory: \local\apache\htdocs. 2022-10-14, ∼265🔥, 0💬

What Is Common Gateway Interface (CGI)?
This section describes what is CGI (Common Gateway Interface) - a protocol defines how a Web server program interacts with application programs. 2022-10-07, ∼265🔥, 0💬

Defining Returning Values of a Remote Method Call
This section describes how returning values of a remote method call can be defined in XML format. The root element name is 'methodResponse'. 2022-10-05, ∼265🔥, 0💬

String Built-in Functions and Performance
This chapter provides tutorial examples and notes about string built-in functions and performance. Topics include string built-in functions: chop(), length(), index(), substr() and split() functions; Perl functions are 2 times slower than Java functions. 2022-11-16, ∼263🔥, 0💬

String Related Built-in Functions
This section describes built-in functions to manipulate strings: chop(), length(), index(), substr(), split(). 2022-10-17, ∼263🔥, 0💬

List Value Constructors
This section describes what is a list value constructor, a list of scalar values separated by commas. Elements of a list value can be accessed with the subscription notation [i]. 2022-10-31, ∼262🔥, 0💬

http-equiv="Refresh" Meta Tag not Followed
This section provides a tutorial example showing that the LWP::UserAgent get() method does not follow the http-equiv='Refresh' meta tag in the response. 2022-10-04, ∼262🔥, 0💬

Scalar Value Constructors
This section describes what is a scalar value constructor, a numeric literal or a string literal, and what are syntax rules on using scalar value constructors. 2022-10-18, ∼261🔥, 0💬

Redirecting Browser to a URI
This section provides a tutorial example on how to redirect the browser to go to a new URI with the redirect() method in the CGI.pm module. 2022-10-14, ∼261🔥, 0💬

Perl Installation on Linux Systems
This section describes how to verify Perl installation on Linux systems. The 'perl -v' command returns which version of Perl is installed on the Linux system. 2022-10-12, ∼261🔥, 0💬

DBM Database Example - English French Dictionary
This section provides a tutorial example of using DBM database files to build an English to French dictionary with insert, update, delete and print functions. 2022-10-08, ∼260🔥, 0💬

Variables - Scalar, Array and Hash
This section describes Perl variable types: Scalar, Array, and Hash. Variable names must be prefixed with special symbols to indicate their types, $, @ and %. 2022-11-02, ∼259🔥, 0💬

Install Perl Module from Source Code
This section provides a tutorial on how to install Perl module from source code using the 'make' utility manually on macOS. 2022-10-10, ∼259🔥, 0💬

Scalar Value Interpretation
This section describes how a scalar value will be interpreted in an operation. A tutorial example is provided to verify scalar value interpretation rules. 2022-10-14, ∼257🔥, 0💬

do() Function - Including Script Files
This section provides a tutorial example on how to use do() function to include script code from another file into the current script file. 2022-11-01, ∼255🔥, 0💬

<< < 1 2 3 4 5 6 7 8 > >>   ∑:177  Sort:Date

Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO