How to get or inspect source code associated with installed binary packages?

[Jason Crain]

On Mon, March 9, 2009 2:51 pm, David Karr wrote:
> How do I get or inspect the source code associated with installed binary
> packages, ideally with the ability to build it?  For instance, I'd like to
> see the source for "libclamav5".

To download the source:
apt-get source libclamav5

To download build-time dependencies required for compiling:
apt-get build-dep libclamav5