How To Install jlex on Kali Linux

Introduction

In this tutorial we learn how to install jlex on Kali Linux.

What is jlex

jlex is:

The JLex utility is a lexical analyser generator, modelled after the popular UNIX “lex” utility.

JLex takes a specification file similar to that accepted by Lex, then creates a Java source file for the corresponding lexical analyzer.

There are three methods to install jlex on Kali Linux. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install jlex Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install jlex

Install jlex Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install jlex

Install jlex Using aptitude

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

sudo aptitude update

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

sudo aptitude -y install jlex

How To Uninstall jlex on Kali Linux

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

sudo apt-get remove jlex

Uninstall jlex And Its Dependencies

To uninstall jlex and its dependencies that are no longer needed by Kali Linux, we can use the command below:

sudo apt-get -y autoremove jlex

Remove jlex Configurations and Data

To remove jlex configuration and data from Kali Linux we can use the following command:

sudo apt-get -y purge jlex

Remove jlex configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge jlex

Dependencies

jlex have the following dependencies:

• default-jre

References

• jlex website

Summary

In this tutorial we learn how to install jlex package on Kali Linux using different package management tools: apt, apt-get and aptitude.