Debian package management

# the Debian APT = Advanced Packaging Tool

# update and upgrade

$ sudo apt-get update # update is used to resynchronize the package index files from their sources

$ sudo apt-get upgrade # upgrade is used to install the newest versions of all packages currently installed on the system from the sources enumerated in /etc/apt/sources.list

dealing with packages files (.deb)

# which files are included? will be created from this package file?

$ ...

# what's the official package name?

$ ...

# what's the content of this package file?

$ ...

# ...

$ ...

dealing with installed packages

# which packages are installed (together with details)?

$ ... --list

# details of an installed package

$ ... --list PACKAGE

# what's the content of an installed package?

$ ... --listfiles ...

# ...

$ ...