How To Install libfst-tools on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libfst-tools on Ubuntu 18.04.
What is libfst-tools
libfst-tools is:
OpenFst is a library for constructing, combining, optimizing, and searching weighted finite-state transducers (FSTs). Weighted finite-state transducers are automata where each transition has an input label, an output label, and a weight. The more familiar finite-state acceptor is represented as a transducer with each transition’s input and output label equal. Finite-state acceptors are used to represent sets of strings (specifically, regular or rational sets); finite-state transducers are used to represent binary relations between pairs of strings (specifically, rational transductions). The weights can be used to represent the cost of taking a particular transition.
This package provides the command line tools.
There are three methods to install libfst-tools 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 libfst-tools Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libfst-tools using apt-get by running the following command:
sudo apt-get -y install libfst-tools
Install libfst-tools Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libfst-tools using apt by running the following command:
sudo apt -y install libfst-tools
Install libfst-tools 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 libfst-tools using aptitude by running the following command:
sudo aptitude -y install libfst-tools
How To Uninstall libfst-tools on Ubuntu 18.04
To uninstall only the libfst-tools package we can use the following command:
sudo apt-get remove libfst-tools
Uninstall libfst-tools And Its Dependencies
To uninstall libfst-tools and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libfst-tools
Remove libfst-tools Configurations and Data
To remove libfst-tools configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libfst-tools
Remove libfst-tools configuration, data, and all of its dependencies
We can use the following command to remove libfst-tools configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libfst-tools
References
Summary
In this tutorial we learn how to install libfst-tools package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
