How To Install rubygem-diff-lcs on CentOS 8

rubygem-diff-lcs is Provide a list of changes between two sequenced collections

Introduction

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

What is rubygem-diff-lcs

Diff McIlroy-Hunt longest common subsequence (LCS) algorithm. It includes utilities to create a simple HTML diff output format and a standard diff-like tool.

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

Install rubygem-diff-lcs 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-diff-lcs using dnf by running the following command:

sudo dnf -y install rubygem-diff-lcs

Install rubygem-diff-lcs 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-diff-lcs using yum by running the following command:

sudo yum -y install rubygem-diff-lcs

How To Uninstall rubygem-diff-lcs on CentOS 8

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

sudo dnf remove rubygem-diff-lcs

rubygem-diff-lcs Package Contents on CentOS 8

/usr/bin/htmldiff
/usr/bin/ldiff
/usr/share/gems/gems/diff-lcs-1.3
/usr/share/gems/gems/diff-lcs-1.3/License.md
/usr/share/gems/gems/diff-lcs-1.3/bin
/usr/share/gems/gems/diff-lcs-1.3/bin/htmldiff
/usr/share/gems/gems/diff-lcs-1.3/bin/ldiff
/usr/share/gems/gems/diff-lcs-1.3/docs
/usr/share/gems/gems/diff-lcs-1.3/docs/COPYING.txt
/usr/share/gems/gems/diff-lcs-1.3/docs/artistic.txt
/usr/share/gems/gems/diff-lcs-1.3/lib
/usr/share/gems/gems/diff-lcs-1.3/lib/diff
/usr/share/gems/gems/diff-lcs-1.3/lib/diff-lcs.rb
/usr/share/gems/gems/diff-lcs-1.3/lib/diff/lcs
/usr/share/gems/gems/diff-lcs-1.3/lib/diff/lcs.rb
/usr/share/gems/gems/diff-lcs-1.3/lib/diff/lcs/array.rb
/usr/share/gems/gems/diff-lcs-1.3/lib/diff/lcs/block.rb
/usr/share/gems/gems/diff-lcs-1.3/lib/diff/lcs/callbacks.rb
/usr/share/gems/gems/diff-lcs-1.3/lib/diff/lcs/change.rb
/usr/share/gems/gems/diff-lcs-1.3/lib/diff/lcs/htmldiff.rb
/usr/share/gems/gems/diff-lcs-1.3/lib/diff/lcs/hunk.rb
/usr/share/gems/gems/diff-lcs-1.3/lib/diff/lcs/internals.rb
/usr/share/gems/gems/diff-lcs-1.3/lib/diff/lcs/ldiff.rb
/usr/share/gems/gems/diff-lcs-1.3/lib/diff/lcs/string.rb
/usr/share/gems/specifications/diff-lcs-1.3.gemspec

References

Summary

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