You need to uninstall a package
To uninstall an installed package with dpkg you just need to enter the following command:
dpkg -r <packagename>
This will uninstall the package but the configuration files remain on the system.
dpkg -r -P <packagename>
With purge you uninstall everything, even the configuration files.
The complete syntax is the following:
dpkg -r | --remove | -P | --purge package ... | -a | --pending
For more information you can view the man pages.
About the Author
Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux in different European countries and different European languages. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform where he is one of the most important contributors and the main developer.