How To Install libghc-fclabels-doc on Debian 9
Introduction
In this tutorial we learn how to install libghc-fclabels-doc on Debian 9.
What is libghc-fclabels-doc
libghc-fclabels-doc is:
This package provides first class labels that can act as bidirectional record fields. The labels can be derived automatically using Template Haskell which means you don’t have to write any boilerplate yourself. The labels are implemented as lenses and are fully composable. Labels can be used to /get/, /set/ and /modify/ parts of a datatype in a consistent way.
See “Data.Label” for an introductory explanation.
Internally lenses are not tied to Haskell functions directly, but are implemented as arrows. Arrows allow the lenses to be run in custom computational contexts. This approach allows us to make partial lenses that point to fields of multi-constructor datatypes in an elegant way.
See the “Data.Label.Maybe” module for the use of partial labels.
1.1.1.0 -> 1.1.2
- Added partial set/modify versions that act as identity when the constructor field is not available.
Author: Sebastiaan Visser, Erik Hesselink, Chris Eidhof, Sjoerd Visscher with lots of help and feedback from others. Upstream-Maintainer: Sebastiaan Visser [email protected]
This package contains the documentation files.
There are three methods to install libghc-fclabels-doc on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libghc-fclabels-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 libghc-fclabels-doc using apt-get by running the following command:
sudo apt-get -y install libghc-fclabels-doc
Install libghc-fclabels-doc Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libghc-fclabels-doc using apt by running the following command:
sudo apt -y install libghc-fclabels-doc
Install libghc-fclabels-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 Debian. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install libghc-fclabels-doc using aptitude by running the following command:
sudo aptitude -y install libghc-fclabels-doc
How To Uninstall libghc-fclabels-doc on Debian 9
To uninstall only the libghc-fclabels-doc package we can use the following command:
sudo apt-get remove libghc-fclabels-doc
Uninstall libghc-fclabels-doc And Its Dependencies
To uninstall libghc-fclabels-doc and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove libghc-fclabels-doc
Remove libghc-fclabels-doc Configurations and Data
To remove libghc-fclabels-doc configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge libghc-fclabels-doc
Remove libghc-fclabels-doc configuration, data, and all of its dependencies
We can use the following command to remove libghc-fclabels-doc configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libghc-fclabels-doc
Dependencies
libghc-fclabels-doc have the following dependencies:
References
Summary
In this tutorial we learn how to install libghc-fclabels-doc package on Debian 9 using different package management tools: apt, apt-get and aptitude.