/etc/apt/sources.list: Stores the repository locations that apt uses to search for packages specific to your systemapt-get: Package handling and installation utility for Debian-based distributions- Installs packages by name and includes dependent packages during install
dpkg: Installs .deb package files on Debian-based systems-i– Install as well as configure package-r– Remove package-configure– Configures a package-c– List contents of a package --s– List status of package (installed or not) -apt-cache: Allows searching of named package or shows installed packagesapt-cache pkgnames– Show installedapt-cache search– Search for named package
dpkg-reconfigure: Reconfigure an already-installed packageaptitude: High level package management interface for Debian-based distributions