How To Install libcasa-measures4 on Ubuntu 20.04
Introduction
In this tutorial we learn how to install libcasa-measures4 on Ubuntu 20.04.
What is libcasa-measures4
libcasa-measures4 is:
The casacore package contains the core libraries of the old AIPS++/CASA (Common Astronomy Software Applications) package. This split was made to get a better separation of core libraries and applications.
This package implements measures (i.e. quantities with references frames) and their persistency. Examples are the Hour-angle and Declination of a source at a certain time and observatory; an Ra/Dec for a certain mean epoch; an apparent frequency at a certain time given in eV; a local sidereal time at an observatory. Measures can be converted from one reference frame to another (and this possibility is its main reason for existence).
There are three methods to install libcasa-measures4 on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libcasa-measures4 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libcasa-measures4 using apt-get by running the following command:
sudo apt-get -y install libcasa-measures4
Install libcasa-measures4 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libcasa-measures4 using apt by running the following command:
sudo apt -y install libcasa-measures4
Install libcasa-measures4 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 libcasa-measures4 using aptitude by running the following command:
sudo aptitude -y install libcasa-measures4
How To Uninstall libcasa-measures4 on Ubuntu 20.04
To uninstall only the libcasa-measures4 package we can use the following command:
sudo apt-get remove libcasa-measures4
Uninstall libcasa-measures4 And Its Dependencies
To uninstall libcasa-measures4 and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove libcasa-measures4
Remove libcasa-measures4 Configurations and Data
To remove libcasa-measures4 configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge libcasa-measures4
Remove libcasa-measures4 configuration, data, and all of its dependencies
We can use the following command to remove libcasa-measures4 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libcasa-measures4
References
Summary
In this tutorial we learn how to install libcasa-measures4 package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
