Launching processes:

run-process ( desc -- process )

try-process ( desc -- )

run-detached ( desc -- process )

Redirecting standard input and output to a pipe:

<process-reader> ( desc encoding -- stream )

<process-writer> ( desc encoding -- stream )

<process-stream> ( desc encoding -- stream )

Combinators built on top of the above:

with-process-reader ( desc encoding quot -- )

with-process-writer ( desc encoding quot -- )

with-process-stream ( desc encoding quot -- )