Complex Pipelines
Some stages accept multiple input streams and others generate multiple output streams.
An example of a stage that generates multiple output streams is the LOCATE stage as shown in Figure 3 and Figure 1.
LOCATE is used to select specific data from the input stream. In both examples, only the input data, including the string BOB, flow through the stage. But, what if you wanted a way to act on both the selected data and the data that was not selected? You really want a pipeline that looks something like that shown in Figure 1.
The pipeline shown in Figure 1 is called a complex pipeline. A complex pipeline is made up of simple pipelines connected with labels, such as the one shown in Figure 1. Complex pipelines are simple programs rather than complicated commands.