How To Install ruby-cmdparse on Ubuntu 18.04

In this tutorial we learn how to install ruby-cmdparse on Ubuntu 18.04. ruby-cmdparse is Advanced command line parsing Ruby module supporting sub-commands

Introduction

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

What is ruby-cmdparse

ruby-cmdparse is:

Flexible Ruby library simplifying creation of shell commands using sub-commands, ie a la apt-get. It uses optparse, part of the Ruby standard library.

There are three methods to install ruby-cmdparse 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-cmdparse 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-cmdparse using apt-get by running the following command:

sudo apt-get -y install ruby-cmdparse

Install ruby-cmdparse Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install ruby-cmdparse

Install ruby-cmdparse 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-cmdparse using aptitude by running the following command:

sudo aptitude -y install ruby-cmdparse

How To Uninstall ruby-cmdparse on Ubuntu 18.04

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

sudo apt-get remove ruby-cmdparse

Uninstall ruby-cmdparse And Its Dependencies

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

sudo apt-get -y autoremove ruby-cmdparse

Remove ruby-cmdparse Configurations and Data

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

sudo apt-get -y purge ruby-cmdparse

Remove ruby-cmdparse configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge ruby-cmdparse

References

Summary

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