/usr/local/etc/dpkg/dpkg.cfg.d/[0-9a-zA-Z_-]*
Configuration fragment files (since dpkg 1.15.4).
/usr/local/etc/dpkg/dpkg.cfg
Configuration file with default options.
/usr/local/var/log/dpkg.log
Default log file (see /usr/local/etc/dpkg/dpkg.cfg and
option --log).
The other files listed below are in their default directories,
see option --admindir to see how to change locations of these
files.
/usr/local/var/lib/dpkg/available
List of available packages.
/usr/local/var/lib/dpkg/status
Statuses of available packages. This file contains
information about whether a package is marked for removing
or not, whether it is installed or not, etc. See section
INFORMATION ABOUT PACKAGES for more info.
The status file is backed up daily in /var/backups. It can
be useful if it's lost or corrupted due to filesystems
troubles.
The format and contents of a binary package are described in
deb(5).
