How To Install rubygem-metaclass on CentOS 8

rubygem-metaclass is Adds a metaclass method to all Ruby objects

Introduction

In this tutorial we learn how to install rubygem-metaclass on CentOS 8.

What is rubygem-metaclass

Adds a metaclass method to all Ruby objects

We can use yum or dnf to install rubygem-metaclass on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install rubygem-metaclass.

Install rubygem-metaclass on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install rubygem-metaclass using dnf by running the following command:

sudo dnf -y install rubygem-metaclass

Install rubygem-metaclass on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install rubygem-metaclass using yum by running the following command:

sudo yum -y install rubygem-metaclass

How To Uninstall rubygem-metaclass on CentOS 8

To uninstall only the rubygem-metaclass package we can use the following command:

sudo dnf remove rubygem-metaclass

rubygem-metaclass Package Contents on CentOS 8

/usr/share/gems/gems/metaclass-0.0.4
/usr/share/gems/gems/metaclass-0.0.4/COPYING.txt
/usr/share/gems/gems/metaclass-0.0.4/lib
/usr/share/gems/gems/metaclass-0.0.4/lib/metaclass
/usr/share/gems/gems/metaclass-0.0.4/lib/metaclass.rb
/usr/share/gems/gems/metaclass-0.0.4/lib/metaclass/object_methods.rb
/usr/share/gems/gems/metaclass-0.0.4/lib/metaclass/version.rb
/usr/share/gems/specifications/metaclass-0.0.4.gemspec

References

Summary

In this tutorial we learn how to install rubygem-metaclass on CentOS 8 using yum and dnf.