[cs631apue] About background

[Jan Schaumann]

Shenghan Gao <sgao9 at stevens.edu> wrote:
 
> I have a question about background job. My question is should '&' must at
> the end of all command when piping two or more commands? Is it possible
> that we let part of pipe be background like "ls -R & | wc"?

Consider what that means and how it would/could work.  What would the
user expect?  Compare to what other shells do, then decide for yourself.

-Jan