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This article mainly explains "the steps of installing perl programming language under CentOS". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn the steps of installing perl programming language under CentOS.

Perl was originally designed by Larry Wall (Larry Wall), who released it on December 18, 1987.

Perl borrows features from C, sed, awk, shell scripting, and many other programming languages. One of the most important features is its internal integration of regular expressions and the huge third-party code base CPAN. In short, Perl is as powerful as C and as convenient as scripting languages such as awk and sed. It is called "a fantasy scripting language with various language functions" and "the trump card tool in Unix".

Perl is commonly referred to as the "practical report extraction language" (Practical Extraction and Report Language), and you may also see "perl", all of which are lowercase. In general, "Perl", with uppercase P, refers to the language itself, while "perl", lowercase p, refers to the interpreter on which the program runs.

Perl official website: https://www.perl.org

Perl source code: http://www.cpan.org/src/5.0/

Perlbrew: http://perlbrew.pl

Perl source code installation

The code is as follows:

Wget http://www.cpan.org/src/5.0/perl-5.20.1.tar.gz

Tar-xzf perl-5.20.1.tar.gz

Cd perl-5.20.1

. / Configure-des-Dprefix=$HOME/localperl

Make

Make test

Make install

You need to install make and gcc before installing perl

The code is as follows:

Yum install gcc make

For perl upgrade installation, see "perlbrew installation perl" below.

--

Perlbrew installation

The code is as follows:

[root@ithomer ~] # yum install perlbrew

[root@ithomer ~] # perlbrew version

/ usr/bin/perlbrew-App::perlbrew/0.28

Cpan install perlbrew

The code is as follows:

Sudo yum install cpan

Sudo cpan App::perlbrew

Perlbrew init

Perlbrew version

Perlbrew initialization

The code is as follows:

[root@ithomer ~] # perlbrew init

Perlbrew environment initiated, required directories are created under

~ / perl5/perlbrew

Paste the following line (s) to the end of your / .bashrc and start a

New shell, perlbrew should be up and fully functional from there:

Source ~ / perl5/perlbrew/etc/bashrc

For further instructions, simply run `perlbrew` to see the help message.

Enjoy perlbrew at $homemade!

According to the above prompts, copy source ~ / perl5/perlbrew/etc/bashrc and paste it into the last line of ~ / .bashrc file and save it.

Perlbrew install perl

The code is as follows:

[root@ithomer ~] # perlbrew list

* / usr/bin/perl (5.10.1)

[root@ithomer ~] # perlbrew available

Perl-5.21.6

Perl-5.20.1

Perl-5.18.4

Perl-5.16.3

Perl-5.14.4

Perl-5.12.5

Perl-5.10.1

Perl-5.8.9

Perl-5.6.2

Perl5.005_04

Perl5.004_05

Perl5.003_07

[root@ithomer ~] # perlbrew install perl-5.20.1

Fetching perl-5.20.1 as / root/perl5/perlbrew/dists/perl-5.20.1.tar.gz

[root@ithomer ~] # perlbrew switch perl-5.20.1

[root@ithomer ~] # perlbrew list

* perl-5.20.1

/ usr/bin/perl (5.10.1)

[root@ithomer] # perl-v

This is perl 5, version 20, subversion 1 (v5.20.1) built for x86_64-linux

Copyright 1987-2014, Larry Wall

Perl may be copied only under the terms of either the Artistic License or the

GNU General Public License, which may be found in the Perl 5 source kit.

Complete documentation for Perl, including FAQ lists, should be found on

This system using "man perl" or "perldoc perl". If you have access to the

Internet, point your browser at http://www.perl.org/, the Perl Home Page.

[root@ithomer ~] # perlbrew off

Fetching perl-5.20.1 as / root/perl5/perlbrew/dists/perl-5.20.1.tar.gz

[root@ithomer ~] # which perl

/ root/perl5/perlbrew/perls/perl-5.20.1/bin/perl

Description:

The code is as follows:

# Install installs the specified version of perl with perlbrew and downloads directory / root/perl5/perlbrew/dists/perl-5.20.1.tar.gz by default

Perlbrew install 5.20.1

Perlbrew install perl-5.20.1

# List installed versions lists the installed versions of perl

Perlbrew list

# Use a particular version uses perlbrew to select a specific perl version

Perlbrew switch perl-5.20.1

Perl-v

# do not use perlbrew for the time being, you can turn it off. Switching the perl version will fail after it is closed, so do not switch it.

Perlbrew off

--

Cpan installation

The code is as follows:

[root@ithomer ~] # yum install cpan

[root@ithomer] # cpan-v

/ usr/bin/cpan script version 1.9, CPAN.pm version 1.9402

Cpan installation Module (Test::More)

The code is as follows:

Cpan Test::More

At this point, I believe you have a deeper understanding of the "steps to install the perl programming language under CentOS". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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