what-source - determine what source package provides some binary package

       This manpage and the utility was written by Dustin Kirkland <kirkland@ubuntu.com> for Ubuntu systems (but
       may  be used by others).  Permission is granted to copy, distribute and/or modify this document under the
       terms of the GNU General Public License, Version 3 published by the Free Software Foundation.

       On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-
       licenses/GPL, or on the web at http://www.gnu.org/licenses/gpl.txt.

what-utils                                         30 Aug 2011                                    what-source(1)

what-source(1) is a simple program that determines what source package provides some binary package

       It's a simple wrapper for 'apt-cache(1) show | grep'.

        $ what-source sl
        universe

       what-source - determine what source package provides some binary package

apt-cache(1)

what-source SOME_BINARY_PACKAGE