Package stream provides filters that can be chained together in a manner similar to Unix pipelines. A simple example that prints all go files under the current directory:

stream.Run(
	stream.Find("."),
	stream.Grep(`\.go$`),
	stream.WriteLines(os.Stdout),
)

go get github.com/ghemawat/stream

See godoc for further documentation and examples.

• godoc.org/github.com/ghemawat/stream