How To Install tessa on Ubuntu 18.04
Introduction
In this tutorial we learn how to install tessa on Ubuntu 18.04.
What is tessa
tessa is:
Tessa is a three-dimensional simulation software for optical systems at the wavelength scale, based on the finite differences time-domain method (FDTD). It focuses on simulating large, resonating structures, but can also be used to study propagating beams. It can simulate arbitrary dielectric and absorbing materials, and can be used on single workstations as well as clusters.
Tessa is believed to be terribly efficient.
URL: http://alioth.debian.org/projects/tessa/
There are three methods to install tessa 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 tessa Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install tessa using apt-get by running the following command:
sudo apt-get -y install tessa
Install tessa Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install tessa using apt by running the following command:
sudo apt -y install tessa
Install tessa 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 tessa using aptitude by running the following command:
sudo aptitude -y install tessa
How To Uninstall tessa on Ubuntu 18.04
To uninstall only the tessa package we can use the following command:
sudo apt-get remove tessa
Uninstall tessa And Its Dependencies
To uninstall tessa and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove tessa
Remove tessa Configurations and Data
To remove tessa configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge tessa
Remove tessa configuration, data, and all of its dependencies
We can use the following command to remove tessa configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge tessa
References
Summary
In this tutorial we learn how to install tessa package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.