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Packages
Add local directory to apt sources.list
Automatically installed packages
Check if a package is installed
Determine which package a file belongs to
Extract deb file without having dpkg
Installing experimental packages
Linux Distribution Equivalents
List all packages installed on the system
List the files installed by a package
Verify the files of installed packages are still exactly like they were when they got installed
Add local directory to apt sources.list
Automatically installed packages
Check if a package is installed
Determine which package a file belongs to
Extract deb file without having dpkg
Installing experimental packages
Linux Distribution Equivalents
List all packages installed on the system
List the files installed by a package
Verify the files of installed packages are still exactly like they were when they got installed