2015-10-18 19:36:49 -0400, Chet Ramey: > On 10/17/15 8:43 PM, Linda Walsh wrote: [...] > > ??? I've never seen a usage where it expands to a filename and > > is treated as such. > > Every example of process substitution ever given expands to a filename, > and the result is treated as a filename. [...]
Possibly (though unlikely) the confusion comes from the yash shell where <(...), >(...) are for process *redirection* instead of process *substitution*. In yash. ls >(process-stdout-cmd) 2>(process-stderr-cmd) Does run those process-stdout-cmd and process-stderr-cmd commands in background and ls's stdout and stderr are pipes to their input. See http://unix.stackexchange.com/a/208133 http://unix.stackexchange.com/a/86372 for some more details and example usage. -- Stephane
