How To Install ruby-ast on Ubuntu 18.04
Introduction
In this tutorial we learn how to install ruby-ast on Ubuntu 18.04.
What is ruby-ast
ruby-ast is:
ast embraces immutability; each AST node is inherently frozen at creation, and updating a child node requires recreating that node and its every parent, recursively.
This is a design choice. It does create some pressure on garbage collector, but completely eliminates all concurrency and aliasing problems.
See also AST::Node, AST::Processor::Mixin and AST::Sexp classes for additional recommendations and design patterns.
There are three methods to install ruby-ast 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 ruby-ast Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install ruby-ast using apt-get by running the following command:
sudo apt-get -y install ruby-ast
Install ruby-ast Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install ruby-ast using apt by running the following command:
sudo apt -y install ruby-ast
Install ruby-ast 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 ruby-ast using aptitude by running the following command:
sudo aptitude -y install ruby-ast
How To Uninstall ruby-ast on Ubuntu 18.04
To uninstall only the ruby-ast package we can use the following command:
sudo apt-get remove ruby-ast
Uninstall ruby-ast And Its Dependencies
To uninstall ruby-ast and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove ruby-ast
Remove ruby-ast Configurations and Data
To remove ruby-ast configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge ruby-ast
Remove ruby-ast configuration, data, and all of its dependencies
We can use the following command to remove ruby-ast configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge ruby-ast
References
Summary
In this tutorial we learn how to install ruby-ast package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
