dpkg-source

dpkg-source is a tool that is part of dpkg-dev.

dpkg-source knows how to pack and unpack SourcePackages. Source packages can be maniuplated with other tools, but for convenience dpkg-source should be used.

To unpack a source package use

$ dpkg-source -x package_version.dsc

To build one use the -b option, the arguments for building one are in dpkg-source(1).