Function conch_runtime::eval::redirect_dup_write [−][src]
pub fn redirect_dup_write<W, E: ?Sized>(
dst_fd: Option<Fd>,
src_fd: W,
env: &E
) -> Redirect<W::EvalFuture> where
W: WordEval<E>,
E: IsInteractiveEnvironment,
Evaluate a redirect which will either duplicate a writeable file descriptor
as specified by src_fd
into dst_fd
, or close dst_fd
if src_fd
evaluates to -
.
If fd
is not specified, then STDOUT_FILENO
will be used.