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9 Regular Expressions in PerlThree forms of regular expressionsCommon patterns in regular expressions8 Principles of Regular expressionsRegular expressions are a major feature of the Perl language and a bit of a problem in Perl, but if you can master him well, you can easily use regular expressions to complete the task of string processing, which is more handy in CGI programming. Below we list some of the b

Compile and install perl (5.16.1) in CentOS) First download the latest perl source code package: [Root @ akinlau/] # wget http://www.cpan.org/src/5.0/perl-5.16.1.tar.gz Decompress the source package[Root @ akinlau/] # tar-xzf perl-5.16.1.tar.gz Compile and install. The directory can be customized. [Root @ akinlau/] # c

Perl as an explanatory language, is very popular with the system administrators, the benefits of not much to say, the disadvantages of many, such as the support of the thread has been not good, so most of the time, we need a number of processes to help us complete the work, gossip less, on the code. #!/usr/bin/perl # test_proc.pl # Test Multi Process # Create by lianming:2009-08-12 use strict; Use warnings;

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. Whereas PATH contains a list of directories to search for executables, @INC contains a list of directories from which Perl Modules and libraries can be loaded.

Usage of CPAN in Perl learning notes This article mainly introduces the usage of CPAN in Perl learning notes. This article describes CPAN, CPAN's directory functions, and CPAN's installation of Perl Module, for more information, see CPAN (Comprehensive Perl Archive Network: A Comprehensive

Thanks to aka and the author. Regular Expressions in PerlThree forms of regular expressions Common patterns in regular expressions The 8 major principles of regular expressions Regular expressions are a major feature of the Perl language and a bit of a pain in the Perl program, but if you have a good grasp of him, you can easily use regular expressions to complete the task of string processing, of cours

similar to list For array reference, $ {$ ref} can be abbreviated as $ ref->. For example, you can describe $ {$ ref} [2] to $ ref-> [2]. note $ {ref} [2]} [1] as $ ref-> [2]-> [1], for more information, see $ ref-> [2] [1]. Use UNDEF to destroy a reference: UNDEF $ ref; Perl maintains a reference count for the referenced data. When the count is reduced to 0, the referenced data is destroyed and the memory space is released. Using references ma

About the origins and characteristics of Perl and Python Perl is the abbreviation of practical extraction and report Language, created by Larry Wall in 1987, originally designed to facilitate the processing of reports on UNIX, and has become a fully functional programming language after a long period of development, The current latest version for Perl5.14.1,perl

Install with CPAN 1. My system is Debian. By default, only Perl-base is installed, that is, Perl can be used, but CPAN is not installed. Therefore, Perl is installed in the system. Aptitude install Perl Install Perl-modules in addition. You can use the CPAN tool to insta

Perl Overview Perl was first developed by Larry Wall and is a "glue" language, for example, converting the output of the previous program into the input of the next program. The first version of Perl was released in December 18, 1987 and has been steadily upgraded until Perl 5. Per