How To Install rubygem-open4 on CentOS 8

rubygem-open4 is Manage child processes and their IO handles easily

Introduction

In this tutorial we learn how to install rubygem-open4 on CentOS 8.

What is rubygem-open4

Open child process with handles on pid, stdin, stdout, and stderr. Manage child processes and their IO handles easily.

We can use yum or dnf to install rubygem-open4 on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install rubygem-open4.

Install rubygem-open4 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-open4 using dnf by running the following command:

sudo dnf -y install rubygem-open4

Install rubygem-open4 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-open4 using yum by running the following command:

sudo yum -y install rubygem-open4

How To Uninstall rubygem-open4 on CentOS 8

To uninstall only the rubygem-open4 package we can use the following command:

sudo dnf remove rubygem-open4

rubygem-open4 Package Contents on CentOS 8

/usr/share/gems/gems/open4-1.3.4
/usr/share/gems/gems/open4-1.3.4/LICENSE
/usr/share/gems/gems/open4-1.3.4/README
/usr/share/gems/gems/open4-1.3.4/README.erb
/usr/share/gems/gems/open4-1.3.4/lib
/usr/share/gems/gems/open4-1.3.4/lib/open4.rb
/usr/share/gems/specifications/open4-1.3.4.gemspec

References

Summary

In this tutorial we learn how to install rubygem-open4 on CentOS 8 using yum and dnf.