DPKG

1. dpkg -l : list all package installed on the system
2. dpkg -L [package-name] : list the file installed by a package
3. dpkg -S [file-name] : knowing which package installed a file
4. dpkg -i [package.deb] : install a local .deb file
5. /var/log/dpkg.log : log of dpkg operation

APT (Advance Packaging Tool)

1. apt edit-sources : edit a repository
2. apt-cache search [package-name] : searching for a package
3. apt install [package-name] : install a package
4. apt remove [package-name] : remove a package
5. apt autoremove [package-name] : remove a package with a unused
6. apt remove --purge [package-name] : remove a package with the configuration files
7. apt update : update system (update the package index)
8. apt upgrade : upgrade system (upgrade the package index)

Installation methods