Cheat sheet for Debian Linux package management

debian-package-mgt.sh

# install '.deb' package (local file)
dpkg -i my-package

# list installed packages
dpkg-query -W

# list installed ('ii' marker) and not installed ('un') packages
dpkg -l

# list available packages
apt-cache search $query

# show package details (description, URL, etc.)
apt-cache show $package-name

# install package
apt-get install mypackage

# update local package DB
apt-get update

# upgrade package
apt-get upgrade mypackage

# remove package
apt-get remove mypackage

# remove package and configuration
apt-get purge mypackage

# Show detailed APT config
apt-config dump

# List all configured APT repositories
more /etc/apt/sources.list.d/*.list

# Add an APT repository
sudo add-apt-repository <PPA name>