perl if not exists

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Perl FAQ Set II _ Application Tips

Which platforms have Perl on? Where are we going to find them? The standard release of Perl (maintained by the Perl Development Group) is distributed only in the original code form. You can obtain it at http://www.perl.com/cpan/src/latest.tar.gz.

Legendary programmer Larry Wall: Perl fun

Author: hoowa Source: AKA magazine "How did Larry Wall invent a messy programming language-and then changed the Web landscape? " Larrywall smiled and recalled the message that David Filo, the co-founder of Yahoo, sent to him a few years ago,

Use the Perl interface to write the vim plug-in

Enable Perl before compiling Vim; Use the Perl interface ** Perl-using **: Perl **: Pe *: PE [RL]{cmd}Run the Perl Command{cmd}. The current package is "Main ". : PE [RL] {endpattern}{script}{endpattern}Execute the Perl

Perl Basic Syntax Introduction _ Basics Tutorial

one. DataType (data type ):Perl's data types are roughly four: Scalar (variables), Scalar Array (array), hash array (hash), References (pointer), but they seem to be small but more than sufficient. In particular, you can write a Perl program without

Basic perl syntax

I. Data Types(Data type): Perl has four data types: Scalar (variable), Scalar Array (Array), Hash Array (Hash), and References (pointer ), it seems to be rare, but it is more than enough to use it. Especially when writing Perl programs, you do not

Linux uses Nginx as the Perl program server and the Perl module configuration _nginx

Perl + fastcgi + nginx Build Nginx + fastcgi is the most popular environment in PHP, then Perl will also have fastcgi it, of course, Today to build the next Nginx Perl fastcgi. Performance is no less than PHP, but now the popularity of Web programs

Perl operator Usage Guide for Perl syntax-application Tips

Introduction to Perl Syntax Perl operators 1.Perl operator 1.1 Arithmetic operators Perl is very different in variables and data paradigms and C. However, its operator and C are almost identical, except for the example conversion operator type of

Guide to Perl operators in Perl syntax

Introduction to Perl Operators 1. Perl Operators 1.1 Arithmetic Operators Perl is similar to C in both variables and data examples, but its operators and C are almost the same, except for C's example conversion operator type, pointer Reference

Introduction to Perl (1)

What is Perl? Perl is a free and open-source scripting language created by Larry Wall. This language is mainly intended for practical and rapid development, Structured Programming is incompatible with the popular object-oriented programming.

Use of Perl (), require (), do (),%inc and @INC

transferred from: http://perl.apache.org/docs/general/perl_reference/perl_reference.html Use (), require (), do (),%inc and @INC explained The @INC array @INC is a special Perl variable which is the equivalent of the shell ' s PATH variable.

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