How To Install stetl on Ubuntu 18.04
Introduction
In this tutorial we learn how to install stetl on Ubuntu 18.04.
What is stetl
stetl is:
Stetl, streaming ETL, pronounced “staedl”, is a lightweight ETL-framework for the conversion of rich (as GML) geospatial data conversion.
It basically glues together existing parsing and transformation tools like GDAL/OGR (ogr2ogr) and XSLT. By using native tools like libxml and libxslt (via Python lxml) Stetl is speed-optimized.
Stetl has a similar design as Spring (Java) and other modern frameworks based on IoC (Inversion of Control). A configuration file (in Python config format) specifies your chain of ETL steps. This chain is formed by a series of Python modules/objects and their parameters. These are symbolically specified in the config file. You just invoke etl.py the main program with a config file. The config file specifies the input modules (e.g. PostGIS), transformers (e.g. XSLT) and outputs (e.g. a GML file or even WFS-T a geospatial protocol to publish GML to a server).
This package contains the stetl utility.
There are three methods to install stetl 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 stetl Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install stetl using apt-get by running the following command:
sudo apt-get -y install stetl
Install stetl Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install stetl using apt by running the following command:
sudo apt -y install stetl
Install stetl 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 stetl using aptitude by running the following command:
sudo aptitude -y install stetl
How To Uninstall stetl on Ubuntu 18.04
To uninstall only the stetl package we can use the following command:
sudo apt-get remove stetl
Uninstall stetl And Its Dependencies
To uninstall stetl and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove stetl
Remove stetl Configurations and Data
To remove stetl configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge stetl
Remove stetl configuration, data, and all of its dependencies
We can use the following command to remove stetl configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge stetl
References
Summary
In this tutorial we learn how to install stetl package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
