How To Install libportlet-api-2.0-spec-java-doc on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libportlet-api-2.0-spec-java-doc on Ubuntu 18.04.
What is libportlet-api-2.0-spec-java-doc
libportlet-api-2.0-spec-java-doc is:
The Java Portlet API version 2.0 developed by the Java Community Process JSR-286 Expert Group.
Portlets are pluggable user interface components that are managed and displayed in a web portal like Liferay or JBoss Gatein.
Package current source code is taken from Apache Portals project http://portals.apache.org/.
This package provides the API documentation for libportlet-api-2.0-spec-java.
There are three methods to install libportlet-api-2.0-spec-java-doc 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 libportlet-api-2.0-spec-java-doc Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libportlet-api-2.0-spec-java-doc using apt-get by running the following command:
sudo apt-get -y install libportlet-api-2.0-spec-java-doc
Install libportlet-api-2.0-spec-java-doc Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libportlet-api-2.0-spec-java-doc using apt by running the following command:
sudo apt -y install libportlet-api-2.0-spec-java-doc
Install libportlet-api-2.0-spec-java-doc 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 libportlet-api-2.0-spec-java-doc using aptitude by running the following command:
sudo aptitude -y install libportlet-api-2.0-spec-java-doc
How To Uninstall libportlet-api-2.0-spec-java-doc on Ubuntu 18.04
To uninstall only the libportlet-api-2.0-spec-java-doc package we can use the following command:
sudo apt-get remove libportlet-api-2.0-spec-java-doc
Uninstall libportlet-api-2.0-spec-java-doc And Its Dependencies
To uninstall libportlet-api-2.0-spec-java-doc and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libportlet-api-2.0-spec-java-doc
Remove libportlet-api-2.0-spec-java-doc Configurations and Data
To remove libportlet-api-2.0-spec-java-doc configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libportlet-api-2.0-spec-java-doc
Remove libportlet-api-2.0-spec-java-doc configuration, data, and all of its dependencies
We can use the following command to remove libportlet-api-2.0-spec-java-doc configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libportlet-api-2.0-spec-java-doc
References
Summary
In this tutorial we learn how to install libportlet-api-2.0-spec-java-doc package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
