>Bash 4.4, released in 2016, supports 'wait $!' to check the exit status >of a process substitution, but it seems too new. > >Some people using older bash versions (on CentOS 7, Ubuntu 16.04, etc.) >reported an error like this: > > ./scripts/check-local-export: line 54: wait: pid 17328 is not a child of this shell Thanks for fixing this! I hit this issue and this patch fixes my problem. Tested-by: Miles Chen <miles.chen@xxxxxxxxxxxx> > >I used the process substitution to avoid a pipeline, which executes each >command in a subshell. If the while-loop is executed in the subshell >context, variable changes within are lost after the subshell terminates.
