On 4/24/19 8:47 AM, Ian Neal wrote:
> At what point is a subshell being invoked? There's no pipeline, command
> substitution, coprocess, background process, or explicit () subshell here,
> which are the only cases a subshell should be created. Otherwise, the
> entire operation should be evaluated by the main shell. Arithmetic
> expansion is not in that list.
Why would you think that /bin/true would be "evaluated by the main shell?"
It's not a shell compound command or a builtin, and non-builtin commands
are run in child processes.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU c...@case.edu http://tiswww.cwru.edu/~chet/
