The Unix [dgsh] shell provides an expressiveway to construct sophisticated and efficient data processing pipelines usingstandard Unix tools, as well as third-party and custom-built components. Dgshallows the specification of pipelines of non-uniform non-linear operations.For example _tee_ can feed three processes whose output can then be collectedby _paste_. The pipelines form a directed acyclic process graph, which istypically executed by multiple processor cores, thus increasing the task'sprocessing throughput. We will see how to use _dgsh_ in practice through anumber of general data processing and domain-specific examples, and how toadapt tools for use with _dgsh_.