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| From | Chet Ramey <chet.ramey@case.edu> |
| Newsgroups | gnu.bash.bug |
| Subject | Re: 'foo > >(bar)' doesn't set $! for external foo not invoked via 'command' |
| Date | Mon, 20 Jul 2020 10:14:39 -0400 |
| Organization | ITS, Case Western Reserve University |
| Lines | 25 |
| Approved | bug-bash@gnu.org |
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On 7/20/20 10:11 AM, Rusty Bird wrote: > Chet Ramey: >>>> Description: >>>> $! isn't set to the PID of 'bar' for >>>> >>>> foo > >(bar) >>>> >>>> if 'foo' is an external program (as opposed to a builtin or >>>> function) - unless it's invoked via 'command'. >> >> Redirections are performed in the subshell created to execute `foo', so the >> process substitution is invoked there and can't affect the parent's $!. > > I guess my question is: Would it not make sense to always perform the > redirection before the subshell is created? You could make a case for it, but I'm not inclined to invalidate 30+ years of bash backward compatibility unless the reason is a lot more compelling. -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/
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Re: 'foo > >(bar)' doesn't set $! for external foo not invoked via 'command' Chet Ramey <chet.ramey@case.edu> - 2020-07-20 10:14 -0400
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