On Tue, May 19, 2015 at 11:23:49AM +0300, Marcelo Azevedo wrote: > what do you mean here by 'owns' the terminal ? and that in the second > (subshell) example none of these things is true. > in '(command)' is command attached to the terminal and in '<(command)' > command is not?
"Attached to" is a fuzzy thing. The command's file descriptors are the terminal, but the command is running in the background. Background jobs are not allowed to read terminal input. (They are, however, allowed to write to the terminal.) The key here is that process substitutions ( <(...) and >(...) ) run their commands in the background, just as if you had done "command &" and possibly "disown".
