how to learn perl

Programming Perl (1180 pagesming Teach Yourself CGI programming with Perl Perl cookbook, 2nd ed (2003) teamlib good. CHM Network Programming with Perl Advanced Perl programming 2nd (O 'reil 2005). CHM Perl hacks Higher-O

This article focuses on the concept of Perl variables in the Perl syntax, where Perl variables are divided into scalar variables, array variables, and relational array variable 3 classes. Perl's variables are sensitive to size, such as: An,an,an is a 3-divided variable, but a variant of a different paradigm can use a uniform name. Introduction to

Nowadays, many people are learning Linux, which is increasingly popular with computer users. If you are studying linux, you may encounter the problem of installing Perl and Perl modules in Linux, here we will introduce how to install the Perl and Perl modules in Linux. Both Linux and

Http://www.mdbbs.org/thread-28471-1-1.html This is a reference method when I learn Perl, I feel very good, share with you: Each person has different learning methods. The following are some examples for your reference. If Perl is the first programming language you have learned, we recommend that you first read some programming basics, process control, logic, a

CPAN appconfig module and database-oriented Configuration Level: elementaryTeodorzlatanov (tzz@iglou.com), programmer, gold Software SystemsOctober 09, 2000 If you use a manual build method, the file-based configuration will soon crash. Teodorzlatanov demonstrates how the appconfig module handles local configur

After the installation of active perl5.10 is downloaded from the official website, a simple Perl script is written. Only one file copy module is referenced and the perl interpreter is called to run the script.ProgramWhen a bunch of errors are reported, first a pop-up box prompts 'unable to start this program, the computer lost perl58.dll ', click OK to report the error message: Can't load 'd: \ oracle \ pro

Reference: http://shouce.jb51.net/perl5/Web site environment configuration: http://www.jb51.net/article/74005.htm The basic syntax of Perl http://www.jb51.net/shouce/Perl.htm Preface: What is Perl, and what is it used for? Perl's original designer's intention was to handle characters, and 80% of the strength was to handle characters, of course, many others. Many web pages are now

How to Use eclipse to debug a Perl application before 11:30:36 This tutorial will introduce the debugging functions provided by the eclipse epic plug-in. This plug-in provides a rich debugging environment that can be used in the epic Perl development environment and integrated with this development environment. This tutorial assumes that you understand the eclipse environment and have experience using

List module for columns in Perl, and list module for perl tools There are some modules specifically used in Perl to Process List data, such as List: Util module. This module is included in the standard library and provides various efficient common List processing tools. Because it is implemented in C language, the speed is generally quite fast! [Example 01] scan

Here we will summarize the issues that need to be paid attention to when programming in the Perl language. 1. the hash value is not sequential, so the values returned by the hash function are all sort, rather than the status when the hash value is assigned. For example: my %hash2=( ‘ten‘ => 10, ‘fiirt‘ => 1, ‘second‘ => 2, ‘third‘ => 3, ‘fouth‘ => 4);print keys %hash2;---result-----fiirtsecondthirdfouthten Using the hash function each, the result is a

Compared with Perl, Perl is still relatively small. It is quite convenient to watch videos when getting started, just like watching movies. I have read almost every episode of Superor. I hope you can take a closer look. Note: You need to write more during learning. You can only understand that only 5% of your work is yours. If you do all the exercises, 30% of your work will be yours. If you can write your

Before studying the basics of Perl, we would like to have a chance to see the following Perl introduction. Baidu Encyclopedia First, basic types of Perl The basic type of per is divided into two types: numeric type and string type. Numeric types can be subdivided into integer types. such as 123. Floating point type. such as 123.123, 0.123456. Scientific counting

Perl language learning notes 9 Regular Expressions for text processing, perl Language Learning 1. Replacement S/PATTERN/REPLACE/; # returns the Boolean value of whether the replacement is successful. You can use capture variables, such as s/(\ w)/$1/ If the matching fails, no processing is performed. 2. delimiters For delimiters without left or right, repeat them three times, for example, s //, s ### There

Perl is a very flexible scripting language. There is also a demand scenario for reflection. Reflection is the conversion of a string to the corresponding language object. (Do not consider the ultimate kill technique such as eval) 1. Reflection as a normal variable this is not supported, that is, you can not achieve My $a = "B"; My $b = "123"; Print \ $a; # trying to get "123" is impossible.The alternative is to use hash My $b = ' 123 '; My $c {' B '}=

Tidy up the notes you put on Hi.baidu years ago!Perl concise Programming, "Perl Language Primer (Fifth Edition)" Reading notes 20110316!The book was bought very early, simply turned over and dropped!Recently bought an ipad, a good reading experience, used to read books, feel the book can look in!You can't look it over and tidy up your reading notes!Perl's program can be so concise!!!Sub division {$_[0]/$_[1

Perl Object-Oriented Programming For details, see damian Conway. Directory-----------------------------------------------------CollationPrefaceThank youOnline 1 What You Need To Know first (Object-Oriented)1.1 object-oriented nature.1.2 Other object-oriented concepts.1.3 terms: Some (many) words.1.4 where can I get more.1.5 summary. 2 What You Need To Know (Perl advanced)2.1

Method 1: Maven is used to build an application in the past two days, there are more than 700 pom. XML file, even more depressing is in many pom. the URL of the resource library is specified separately in the XML file. I need to uniformly specify the URLs of these resource libraries to the local central nexus library. it is not practical to manually change the file configurations one by one, So Google will find a good way to replace the file content in batches. The command structure is as

Perl is a very useful language that can be used to do a lot of things. However, it is only a language, mastering Perl, you just mastered a small piece of knowledge in the field of computer. Before you learn Perl, be clear about your learning objectives and use the right learning methods and resources.(a) Purpose of stu

Release date:Updated on: 2012-03-13 Affected Systems:Debian Linux 6.0 xCpan yaml-LibYAML 0.38Cpan yaml-LibYAML 0.33-1Description:--------------------------------------------------------------------------------Bugtraq id: 52381Cve id: CVE-2012-1152 Perl is a high-level, general, literal, and dynamic programming language. The Perl YAML-LibYAML module has multiple format string vulnerabilities. Attackers ca

, commaIs the function of a connection: $a +=1, $b = $a; ==> $a +=1; $b = $a;No eggs.Eight, conditional operatorsThree operands: evaluates the conditional expression first, and executes the question mark (? The following operation, which executes a colon when false (:) After the operation.$result = $var = = 0? 14:7 #一般只用于简单的条件 too complex is not as good as if statement looks intuitiveIx. Precedence of operators (precedence)Self-increment self-reduction highest, single operand higher than multi-o