Cleaning up apt repositories

There are several ways to clean up the aptitude manager

• apt clean → cleans the packages and install script in /var/cache/apt/archives/
• apt autoclean → cleans obsolete deb-packages, less than clean
• apt autoremove → removes orphaned packages which are not longer needed from the system, but not purges them, use the --purge option together with the command for that.

WARNING

--purge removes also the configuration files, so be careful!