How To Install libonig4 on Ubuntu 18.04

In this tutorial we learn how to install libonig4 on Ubuntu 18.04. libonig4 is regular expressions library

Introduction

In this tutorial we learn how to install libonig4 on Ubuntu 18.04.

What is libonig4

libonig4 is:

Oniguruma is a library for working with regular expressions.

Different character encoding for every regular expression object can be specified.

There are three methods to install libonig4 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 libonig4 Using apt-get

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

sudo apt-get update

After updating apt database, We can install libonig4 using apt-get by running the following command:

sudo apt-get -y install libonig4

Install libonig4 Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libonig4 using apt by running the following command:

sudo apt -y install libonig4

Install libonig4 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 libonig4 using aptitude by running the following command:

sudo aptitude -y install libonig4

How To Uninstall libonig4 on Ubuntu 18.04

To uninstall only the libonig4 package we can use the following command:

sudo apt-get remove libonig4

Uninstall libonig4 And Its Dependencies

To uninstall libonig4 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove libonig4

Remove libonig4 Configurations and Data

To remove libonig4 configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge libonig4

Remove libonig4 configuration, data, and all of its dependencies

We can use the following command to remove libonig4 configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libonig4

References

Summary

In this tutorial we learn how to install libonig4 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.