LKBEN11042: Howto print information about a package with dpkg on debian, ubuntu, kubuntu, knoppix, ...


You need some background information about a package before installing it




You can use the dpkg command with the -I parameter.

Please note that you need a *.deb package as a parameter like:

dpkg -I <packagename.deb>


dpkg -I /var/cache/apt/archives/whois_4.7.20_amd64.deb
 new debian package, version 2.0.
 size 49384 bytes: control archive= 545 bytes.
     596 bytes,    17 lines      control
 Package: whois
 Version: 4.7.20
 Section: net
 Priority: standard
 Architecture: amd64
 Depends: libc6 (>= 2.3.5-1), libidn11 (>= 0.5.18)
 Replaces: bsdmainutils (<= 4.5.1), bsdutils (<< 3.0-0)
 Installed-Size: 284
 Maintainer: Marco d'Itri <>
 Description: the GNU whois client
  This is a new whois (RFC 3912) client rewritten from scratch.
  It is inspired from and compatible with the usual BSD and RIPE whois(1)
  It is intelligent and can automatically select the appropriate whois
  server for most queries.
  The package also contains mkpasswd, a simple front end to crypt(3).


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About the Author

Author: Wim Peeters - Keskon GmbH & Co. KG

Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience, including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform.