How To Install cl-regex on Ubuntu 18.04

In this tutorial we learn how to install cl-regex on Ubuntu 18.04. cl-regex is Common Lisp regular expression compiler/matcher

Introduction

In this tutorial we learn how to install cl-regex on Ubuntu 18.04.

What is cl-regex

cl-regex is:

A fully-featured regular expression compiler and matching engine for Common Lisp that claims to be roughly 5x-20x times faster than the GNU regex matcher written in C.

There are three methods to install cl-regex 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 cl-regex Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install cl-regex

Install cl-regex Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install cl-regex

Install cl-regex 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 cl-regex using aptitude by running the following command:

sudo aptitude -y install cl-regex

How To Uninstall cl-regex on Ubuntu 18.04

To uninstall only the cl-regex package we can use the following command:

sudo apt-get remove cl-regex

Uninstall cl-regex And Its Dependencies

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

sudo apt-get -y autoremove cl-regex

Remove cl-regex Configurations and Data

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

sudo apt-get -y purge cl-regex

Remove cl-regex configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge cl-regex

References

Summary

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