Посмотреть пример использования dpkg -s

dpkg -s apache2
Package: apache2
Status: install ok installed
Priority: optional
Section: httpd
Installed-Size: 36
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Architecture: amd64
Version: 2.2.14-5ubuntu8
Depends: apache2-mpm-worker (= 2.2.14-5ubuntu8) | apache2-mpm-prefork (= 2.2.14-5ubuntu8) | apache2-mpm-event (= 2.2.14-5ubuntu8) | apache2-mpm-itk (= 2.2.14-5ubuntu8), apache2.2-common (= 2.2.14-5ubuntu8)
Description: Apache HTTP Server metapackage
 The Apache Software Foundation's goal is to build a secure, efficient and
 extensible HTTP server as standards-compliant open source software. The
 result has long been the number one web server on the Internet.
 .
 It features support for HTTPS, virtual hosting, CGI, SSI, IPv6, easy
 scripting and database integration, request/response filtering, many
 flexible authentication schemes, and more.
Homepage: http://httpd.apache.org/
Original-Maintainer: Debian Apache Maintainers <debian-apache@lists.debian.org>
Original-Vcs-Browser: http://svn.debian.org/wsvn/pkg-apache/trunk/apache2
Original-Vcs-Svn: svn://svn.debian.org/pkg-apache/trunk/apache2