How to get the PID of a process in a pipeline

Question

Consider the following simplified example:

my_prog|awk \'...\' > output.csv &
my_pid=\"$!\" #Gives the PID for awk instead of for my_prog
sleep 10
kill $my         


        

Answer 1

I was able to solve it with explicitly naming the pipe using mkfifo.

Step 1: mkfifo capture.

Step 2: Run this script

my_prog > capture &
my_pid="$!" #Now, I have the PID for my_prog!
awk '...' capture > out.csv & 
sleep 10
kill $my_pid #kill my_prog
wait #wait for awk to finish.

I don't like the management of having a mkfifo. Hopefully someone has an easier solution.