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Best Steps to Install Perl on RedHat/CentOS 7

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In this article, I will take you through the steps to Install Perl 5.16 on RedHat/CentOS 7.

Perl is an interpreted, multi-platform high-level programming language developed by Larry Wall. It is the Swiss Army knife of scripting languages.

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Perl 1.0 was released in 1987, and at the time of writing this article on Steps to Install Perl on RedHat/CentOS 7,  I am using version 5.16.

Also Read: How to install Python 3 on CentOS 7

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Perl programming can be done by either executing Perl commands at the shell prompt or by writing them in a text file, and then executing it as a Perl Script.

Steps to Install Perl on RedHat/CentOS 7 is fairly straight forward. In next article, i will take you through another method to install perl on CentOS.

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Install Perl on RedHat/CentOS 7

Before we go through the steps to install Perl on RedHat/CentOS 7, you need to have the prerequisites in place.

Prerequisites

You need to have a running RedHat/CentOS 7 System with root access. Below are the minimum CPU and Memory configuration required:-

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Processor: 1CPU
Memory: 1GB

 

Best Steps to Install Perl on RedHat/CentOS 7 1

Update System

Firstly we need to update the system through yum update command as shown below.

[root@localhost ~]# yum update
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: centos.excellmedia.net
* extras: centos.excellmedia.net
* updates: centos.excellmedia.net
base | 3.6 kB 00:00
extras | 2.9 kB 00:00
updates | 2.9 kB 00:00
updates/7/x86_64/primary_db | 1.9 MB 00:00
Resolving Dependencies
--> Running transaction check
---> Package kernel.x86_64 0:3.10.0-1062.1.2.el7 will be installed
---> Package kernel-tools.x86_64 0:3.10.0-1062.1.1.el7 will be updated
---> Package kernel-tools.x86_64 0:3.10.0-1062.1.2.el7 will be an update
---> Package kernel-tools-libs.x86_64 0:3.10.0-1062.1.1.el7 will be updated
---> Package kernel-tools-libs.x86_64 0:3.10.0-1062.1.2.el7 will be an update
---> Package python-perf.x86_64 0:3.10.0-1062.1.1.el7 will be updated
---> Package python-perf.x86_64 0:3.10.0-1062.1.2.el7 will be an update
--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================================================================================
Package Arch Version Repository Size
========================================================================================================================================================================
Installing:
kernel x86_64 3.10.0-1062.1.2.el7 updates 50 M
Updating:
kernel-tools x86_64 3.10.0-1062.1.2.el7 updates 7.8 M
kernel-tools-libs x86_64 3.10.0-1062.1.2.el7 updates 7.7 M
python-perf x86_64 3.10.0-1062.1.2.el7 updates 7.8 M

Transaction Summary
========================================================================================================================================================================
Install 1 Package
Upgrade 3 Packages

Total download size: 73 M
Is this ok [y/d/N]: y
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
(1/4): kernel-tools-3.10.0-1062.1.2.el7.x86_64.rpm | 7.8 MB 00:00:02
(2/4): kernel-tools-libs-3.10.0-1062.1.2.el7.x86_64.rpm | 7.7 MB 00:00:01
(3/4): python-perf-3.10.0-1062.1.2.el7.x86_64.rpm | 7.8 MB 00:00:01
(4/4): kernel-3.10.0-1062.1.2.el7.x86_64.rpm | 50 MB 00:00:11
------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Install Perl Package

Once System is fully updated, you can install perl package through yum install perl command as shown below.

[root@localhost ~]# yum install perl
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.excellmedia.net
* extras: centos.excellmedia.net
* updates: centos.excellmedia.net
Resolving Dependencies
--> Running transaction check
---> Package perl.x86_64 4:5.16.3-294.el7_6 will be installed
--> Processing Dependency: perl-libs = 4:5.16.3-294.el7_6 for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Socket) >= 1.3 for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Scalar::Util) >= 1.10 for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl-macros for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl-libs for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(threads::shared) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(threads) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(constant) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Time::Local) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Time::HiRes) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Storable) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Socket) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Scalar::Util) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Pod::Simple::XHTML) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Pod::Simple::Search) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Getopt::Long) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Filter::Util::Call) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(File::Temp) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(File::Spec::Unix) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(File::Spec::Functions) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(File::Spec) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(File::Path) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Exporter) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Cwd) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Carp) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: libperl.so()(64bit) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Running transaction check
---> Package perl-Carp.noarch 0:1.26-244.el7 will be installed
---> Package perl-Exporter.noarch 0:5.68-3.el7 will be installed
---> Package perl-File-Path.noarch 0:2.09-2.el7 will be installed
---> Package perl-File-Temp.noarch 0:0.23.01-3.el7 will be installed
---> Package perl-Filter.x86_64 0:1.49-3.el7 will be installed
---> Package perl-Getopt-Long.noarch 0:2.40-3.el7 will be installed
--> Processing Dependency: perl(Pod::Usage) >= 1.14 for package: perl-Getopt-Long-2.40-3.el7.noarch
--> Processing Dependency: perl(Text::ParseWords) for package: perl-Getopt-Long-2.40-3.el7.noarch
---> Package perl-PathTools.x86_64 0:3.40-5.el7 will be installed
---> Package perl-Pod-Simple.noarch 1:3.28-4.el7 will be installed
--> Processing Dependency: perl(Pod::Escapes) >= 1.04 for package: 1:perl-Pod-Simple-3.28-4.el7.noarch
--> Processing Dependency: perl(Encode) for package: 1:perl-Pod-Simple-3.28-4.el7.noarch
---> Package perl-Scalar-List-Utils.x86_64 0:1.27-248.el7 will be installed
---> Package perl-Socket.x86_64 0:2.010-4.el7 will be installed
---> Package perl-Storable.x86_64 0:2.45-3.el7 will be installed
---> Package perl-Time-HiRes.x86_64 4:1.9725-3.el7 will be installed
---> Package perl-Time-Local.noarch 0:1.2300-2.el7 will be installed
---> Package perl-constant.noarch 0:1.27-2.el7 will be installed
---> Package perl-libs.x86_64 4:5.16.3-294.el7_6 will be installed
---> Package perl-macros.x86_64 4:5.16.3-294.el7_6 will be installed
---> Package perl-threads.x86_64 0:1.87-4.el7 will be installed
---> Package perl-threads-shared.x86_64 0:1.43-6.el7 will be installed
--> Running transaction check
---> Package perl-Encode.x86_64 0:2.51-7.el7 will be installed
---> Package perl-Pod-Escapes.noarch 1:1.04-294.el7_6 will be installed
---> Package perl-Pod-Usage.noarch 0:1.63-3.el7 will be installed
--> Processing Dependency: perl(Pod::Text) >= 3.15 for package: perl-Pod-Usage-1.63-3.el7.noarch
--> Processing Dependency: perl-Pod-Perldoc for package: perl-Pod-Usage-1.63-3.el7.noarch
---> Package perl-Text-ParseWords.noarch 0:3.29-4.el7 will be installed
--> Running transaction check
---> Package perl-Pod-Perldoc.noarch 0:3.20-4.el7 will be installed
--> Processing Dependency: perl(parent) for package: perl-Pod-Perldoc-3.20-4.el7.noarch
--> Processing Dependency: perl(HTTP::Tiny) for package: perl-Pod-Perldoc-3.20-4.el7.noarch
---> Package perl-podlators.noarch 0:2.5.1-3.el7 will be installed
--> Running transaction check
---> Package perl-HTTP-Tiny.noarch 0:0.033-3.el7 will be installed
---> Package perl-parent.noarch 1:0.225-244.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================================================================================
Package Arch Version Repository Size
========================================================================================================================================================================
Installing:
perl x86_64 4:5.16.3-294.el7_6 base 8.0 M
Installing for dependencies:
perl-Carp noarch 1.26-244.el7 base 19 k
perl-Encode x86_64 2.51-7.el7 base 1.5 M
perl-Exporter noarch 5.68-3.el7 base 28 k
perl-File-Path noarch 2.09-2.el7 base 26 k
perl-File-Temp noarch 0.23.01-3.el7 base 56 k
...................

Verify the Package

Once the perl package is installed, you can verify it through rpm database by using rpm -qa command.

[root@localhost ~]# rpm -qa | grep -i perl-5.16
perl-5.16.3-294.el7_6.x86_64

Check Perl Version

Since the package is installed now, you can check the Perl version through perl -v command.

[root@localhost ~]# perl -v

This is perl 5, version 16, subversion 3 (v5.16.3) built for x86_64-linux-thread-multi
(with 39 registered patches, see perl -V for more detail)

Write your first Perl Script

Let's write one simple Perl script printing hello world.

[root@localhost ~]# cat HelloWorld.pl
#!/usr/bin/perl
use warnings;
print("Hello World\n");

Check the Output

As you can see above script can be run by using perl HelloWorld.pl command which gives us the output Hello World as expected.

[root@localhost ~]# perl HelloWorld.pl
Hello World

Also Read: Constructors in C++

Reference: Perl Documentation

In the next article, i will show you how to install Perl on Windows and Mac.

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