How To Install libdocopt-dev on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libdocopt-dev on Ubuntu 18.04.
What is libdocopt-dev
libdocopt-dev is:
With docopt, the option parser is generated based on the program’s docstring. docopt parses the usage pattern (“Usage: …”) and option descriptions (lines starting with dash “-”) and ensures that the program invocation matches the usage pattern. It parses options, arguments and commands based on that. The basic idea is that a good help message has all necessary information in it to make a parser.
This is a port of the docopt Python module to C++ with a focus on maintaining full feature parity (and code structure) as the original. The differences from the Python port are:
The addition of a docopt_parse function, which does not terminate the program on error a docopt::value type to hold the various value types that can be parsed.
Because C++ is statically-typed and Python is not, some changes were made to the interfaces of the internal parse tree types.
Because std::regex does not have an equivalent to Python’s regex.split, some of the regex’s had to be restructured and additional loops used.
This package provides the development files.
There are three methods to install libdocopt-dev 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 libdocopt-dev Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libdocopt-dev using apt-get by running the following command:
sudo apt-get -y install libdocopt-dev
Install libdocopt-dev Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libdocopt-dev using apt by running the following command:
sudo apt -y install libdocopt-dev
Install libdocopt-dev 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 libdocopt-dev using aptitude by running the following command:
sudo aptitude -y install libdocopt-dev
How To Uninstall libdocopt-dev on Ubuntu 18.04
To uninstall only the libdocopt-dev package we can use the following command:
sudo apt-get remove libdocopt-dev
Uninstall libdocopt-dev And Its Dependencies
To uninstall libdocopt-dev and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libdocopt-dev
Remove libdocopt-dev Configurations and Data
To remove libdocopt-dev configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libdocopt-dev
Remove libdocopt-dev configuration, data, and all of its dependencies
We can use the following command to remove libdocopt-dev configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libdocopt-dev
References
Summary
In this tutorial we learn how to install libdocopt-dev package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
