====== How to list installed packages and their files ======

List all packages for firebird:
<code>
dpkg-query -l firebird* | grep "ii"

  ii  firebird2.5-common                    2.5.0.26074-0.ds4-2ubuntu4                      common files for firebird 2.5 servers and cl
  ii  firebird2.5-common-doc                2.5.0.26074-0.ds4-2ubuntu4                      copyright, licnesing and changelogs of fireb
  ii  firebird2.5-dev                       2.5.0.26074-0.ds4-2ubuntu4                      Development files for Firebird - an RDBMS ba
  ii  firebird2.5-examples                  2.5.0.26074-0.ds4-2ubuntu4                      Examples for Firebird - an RDBMS based on In
  ii  firebird2.5-server-common             2.5.0.26074-0.ds4-2ubuntu4                      common files for firebird 2.5 servers
  ii  firebird2.5-super                     2.5.0.26074-0.ds4-2ubuntu4                      Firebird Super Server - an RDBMS based on In
</code>
  
List files in firebird2.5-common:
<code>
dpkg -L firebird2.5-common

/.
/usr
/usr/lib
/usr/lib/firebird
/usr/lib/firebird/2.5
/usr/lib/firebird/2.5/intl
/usr/lib/firebird/2.5/intl/fbintl
/usr/share
/usr/share/doc
/usr/share/firebird2.5-common
/usr/share/firebird2.5-common/functions.sh
/usr/share/lintian
/usr/share/lintian/overrides
/usr/share/lintian/overrides/firebird2.5-common
/usr/share/firebird
/usr/share/firebird/2.5
/usr/share/firebird/2.5/fr_FR.msg
/usr/share/firebird/2.5/firebird.msg
/usr/share/firebird/2.5/de_DE.msg
/etc
/etc/firebird
/etc/firebird/2.5
/etc/firebird/2.5/firebird.conf
/etc/firebird/2.5/fbintl.conf
/usr/lib/firebird/2.5/firebird.conf
/usr/lib/firebird/2.5/firebird.msg
/usr/lib/firebird/2.5/intl/fbintl.conf
/usr/share/doc/firebird2.5-common
</code>