Modifying environment variable for a process with scala.sys.process?

Question

I want to run my process from scala, with several environment variables modified. For example:

Seq("bash","echo $asdf") !

and $asdf set to some value. Is there a way to do this from scala?

EDIT:

The closest I got to it so far:

val pb = new java.lang.ProcessBuilder("bash","echo $asdf")
pb.environment.put("asdf","value") }
val p = pb.start()
io.Source.fromInputStream(p.getInputStream).getLines.toList.foreach(println)
p.waitFor()

But this is ugly.

Answer 1

Process(Seq("bash", "-c", "echo $asdf"), None, "asdf" -> "Hello, world!").!

See Process.