重击最后的多个管道和背景，获取第一个的状态代码

Question

I am having following code

process_file $2 $3 | prefix "[JIDDD: $3]" |& logger &

And what I would need to have is return/exitcode of the process_file function, how can I have that?

Already tried PIPESTATUS and variables, but as the process moved to background we don't have access anymore.

Answer 1

You can have the background process write the status to a file.

(process_file $2 $3 | prefix "[JIDDD: $3]" |& logger; echo ${PIPESTATUS[0]} > /tmp/process_file.$$) &
wait
status=$(</tmp/process_file.$$)