Command to find the source package of a binary?

Question

I know there's a which command, that echoes the full name of a binary (e.g. which sh). However, I'm fairly sure there's a command that echoes the package that provides a particular binary. Is there such a command? If so, what is it? I'd like to be able to run this:

commandName ls

and get

coreutils

for example.

Answer 1

I guess you are looking for the dpkg -S command (also see frequently used options for dpkg).