How To Install ruby-diff-lcs on Ubuntu 18.04

In this tutorial we learn how to install ruby-diff-lcs on Ubuntu 18.04. ruby-diff-lcs is McIlroy-Hunt longest common subsequence algorithm implementation

Introduction

In this tutorial we learn how to install ruby-diff-lcs on Ubuntu 18.04.

What is ruby-diff-lcs

ruby-diff-lcs is:

Diff::LCS is a port of Algorithm::Diff that uses the McIlroy-Hunt longest common subsequence (LCS) algorithm to compute intelligent differences between two sequenced enumerable containers. The implementation is based on Mario I. Wolczko’s Smalltalk version, and Ned Konz’s Perl version (Algorithm::Diff).

There are three methods to install ruby-diff-lcs on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install ruby-diff-lcs Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install ruby-diff-lcs using apt-get by running the following command:

sudo apt-get -y install ruby-diff-lcs

Install ruby-diff-lcs Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install ruby-diff-lcs using apt by running the following command:

sudo apt -y install ruby-diff-lcs

Install ruby-diff-lcs Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install ruby-diff-lcs using aptitude by running the following command:

sudo aptitude -y install ruby-diff-lcs

How To Uninstall ruby-diff-lcs on Ubuntu 18.04

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

sudo apt-get remove ruby-diff-lcs

Uninstall ruby-diff-lcs And Its Dependencies

To uninstall ruby-diff-lcs and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove ruby-diff-lcs

Remove ruby-diff-lcs Configurations and Data

To remove ruby-diff-lcs configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge ruby-diff-lcs

Remove ruby-diff-lcs configuration, data, and all of its dependencies

We can use the following command to remove ruby-diff-lcs configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge ruby-diff-lcs

References

Summary

In this tutorial we learn how to install ruby-diff-lcs package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.