How To Install libappconfig-perl on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libappconfig-perl on Ubuntu 18.04.
What is libappconfig-perl
libappconfig-perl is:
AppConfig is a bundle of Perl5 modules for reading configuration files and parsing command line arguments. Note that writing configuration files is not supported at this time.
AppConfig supports a relaxed configuration file syntax with support for flags (booleans), single and multivalue (lists or hashes) items. A defined default and validation routine or regex can be defined for each option.
Environment variable, file variable and tilde (~) are supported and may be applied to selected configuration options. For long blocks of text you can also use Perl HEREDOC syntax. Additionally there is also a mechanism to utilise all these same features via a CGI.
There are three methods to install libappconfig-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 libappconfig-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 libappconfig-perl using apt-get by running the following command:
sudo apt-get -y install libappconfig-perl
Install libappconfig-perl Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libappconfig-perl using apt by running the following command:
sudo apt -y install libappconfig-perl
Install libappconfig-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 libappconfig-perl using aptitude by running the following command:
sudo aptitude -y install libappconfig-perl
How To Uninstall libappconfig-perl on Ubuntu 18.04
To uninstall only the libappconfig-perl package we can use the following command:
sudo apt-get remove libappconfig-perl
Uninstall libappconfig-perl And Its Dependencies
To uninstall libappconfig-perl and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libappconfig-perl
Remove libappconfig-perl Configurations and Data
To remove libappconfig-perl configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libappconfig-perl
Remove libappconfig-perl configuration, data, and all of its dependencies
We can use the following command to remove libappconfig-perl configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libappconfig-perl
References
Summary
In this tutorial we learn how to install libappconfig-perl package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
