How To Install jlex on Debian 9
Introduction
In this tutorial we learn how to install jlex on Debian 9.
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 Debian 9. 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 first since aptitude is usually not installed by default on Debian. 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 Debian 9
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 Debian 9, we can use the command below:
sudo apt-get -y autoremove jlex
Remove jlex Configurations and Data
To remove jlex configuration and data from Debian 9 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:
References
Summary
In this tutorial we learn how to install jlex package on Debian 9 using different package management tools: apt, apt-get and aptitude.