Introduction
In this tutorial we learn how to install alfa on Ubuntu 22.04.
What is alfa
alfa is:
ALFA measures fluxes in emission line spectra, such as those of planetary
nebulae and HII regions, using a genetic algorithm to rapidly optimise fits
to large numbers of lines simultaneously. It can subtract night sky emission
lines before fitting the nebular lines if necessary. It can read plain text
files containing 1D spectral data, or FITS files containing 1D, 2D or 3D
datasets.
There are three methods to install alfa on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install alfa Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install alfa using apt-get by running the following command:
sudo apt-get -y install alfa
Install alfa Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install alfa using apt by running the following command:
sudo apt -y install alfa
Install alfa 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 alfa using aptitude by running the following command:
sudo aptitude -y install alfa
How To Uninstall alfa on Ubuntu 22.04
To uninstall only the alfa package we can use the following command:
sudo apt-get remove alfa
Uninstall alfa And Its Dependencies
To uninstall alfa and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove alfa
Remove alfa Configurations and Data
To remove alfa configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge alfa
Remove alfa configuration, data, and all of its dependencies
We can use the following command to remove alfa configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge alfa
References
Summary
In this tutorial we learn how to install alfa package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.
