Apt (Advanced Packaging Tool) is a command-line package installation and dependency management utility in Debian-based distributions.
When you install packages in Debian using the apt-get or apt command, a copy of the .deb file is saved in the /var/cache/apt/archives directory. If you uninstall and reinstall a package, your system will look for it in the cache and download it from there rather than downloading it again.
If you run out of disk space on your Debian system, you can clear the apt-cache and free up some space.
In this context, we shall look into how to clear the apt-cache on Debian.
How to Use apt clean Command ?
To clear the apt-cache, use the apt clean command to erase all files in the cache directory:
$ sudo apt clean
The user doesn't need to manually delete the cache directory.
You can run the apt clean command with an option called —dry-run. This will simply display the folders from which packages will be deleted:
$ sudo apt clean --dry-run
How to Use apt auto-clean Command ?
This command removes all saved archives for packages that can no longer be downloaded from your cache. The packages are either no longer in the repository or have a newer version available in the repo. This command cleans obsolete Debian packages:
$ sudo apt autoclean
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This article covers how to clear the cache created by apt in a completely safe way. It is faster and simpler than manually deleting the cache directory. apt (Advanced Packaging Tool) is the package installation and dependency management tool in Debian and other Debian-based distributions. It works on top of 'Dpkg' which is nothing but the Debian package installer.
The way apt installs packages is: it downloads the package for the required software, and additionally it downloads the packages for all the dependencies for the required software.