Re: Design question(s), re: why use of tmp-files or named-pipes(/dev/fd/N) instead of plain pipes?

[Greg Wooledge]

On Sat, Oct 17, 2015 at 05:43:15PM -0700, Linda Walsh wrote:
> Chet Ramey wrote:
> >I think you're missing that process substitution is a word expansion
> >that is defined to expand to a filename.
> -----
>       ??? I've never seen a usage where it expands to a filename and
> is treated as such.

A simple example:

diff -u <(sort file1) <(sort file2)