Basic Debian package management with dpkg

Having recently built a custom Ubuntu kernel to use for gathering some metrics, I needed to install it.  Of course when I was done I also wanted to correctly remove it.  For the following examples however I will use the package name my-kernel.deb.

Installing the package:

sudo dpkg -i my-package.deb

Listing installed packages:

sudo dpkg -l

The first column lists the package name.  That isn't necessarily the same as the Debian file name on disk (i.e. my-package), but if whomever created the package did things correctly, it should be very close.

Removing (uninstalling) the package:

sudo dpkg -r my-package

Note here we are using the package name that was in the package listing, not the Debian file name.

Purging the package (uninstall and completely remove):

sudo dpkg -P my-package