How To Install libload-perl on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libload-perl on Ubuntu 18.04.
What is libload-perl
libload-perl is:
The “load” pragma allows a module developer to give the application developer more options with regards to optimize for memory or CPU usage. The “load” pragma gives more control on the moment when subroutines are loaded and start taking up memory. This allows the application developer to optimize for CPU usage (by loading all of a module at compile time and thus reducing the amount of CPU used during the execution of an application). Or allow the application developer to optimize for memory usage, by loading subroutines only when they are actually needed, thereby however increasing the amount of CPU needed during execution.
The “load” pragma combines the best of both worlds from AutoLoader and SelfLoader. And adds some more features.
In a situation where you want to use as little memory as possible, the “load” pragma (in the context of a module) is a drop-in replacement for AutoLoader. But for situations where you want to have a module load everything it could ever possibly need (e.g. when starting a mod_perl server in pre-fork mode), the “load” pragma can be used (in the context of an application) to have all subroutines of a module loaded without having to make any change to the source of the module in question.
There are three methods to install libload-perl 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 libload-perl Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libload-perl using apt-get by running the following command:
sudo apt-get -y install libload-perl
Install libload-perl Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libload-perl using apt by running the following command:
sudo apt -y install libload-perl
Install libload-perl 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 libload-perl using aptitude by running the following command:
sudo aptitude -y install libload-perl
How To Uninstall libload-perl on Ubuntu 18.04
To uninstall only the libload-perl package we can use the following command:
sudo apt-get remove libload-perl
Uninstall libload-perl And Its Dependencies
To uninstall libload-perl and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libload-perl
Remove libload-perl Configurations and Data
To remove libload-perl configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libload-perl
Remove libload-perl configuration, data, and all of its dependencies
We can use the following command to remove libload-perl configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libload-perl
References
Summary
In this tutorial we learn how to install libload-perl package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
