each member of the target list individually.
The @var{variable-assignment} can be any valid form of assignment; recursive
-(@samp{=}), simple (@samp{:=} or @samp{::=}), immediate (@samp{::=}), shell
+(@samp{=}), simple (@samp{:=} or @samp{::=}), immediate (@samp{:::=}), shell
(@samp{!=}), or appending (@samp{+=}), and may be preceded by a conditional
modifier (@samp{?}). The variable that appears within the
@var{variable-assignment} is evaluated within the context of the target: thus,