Redirect both stdin and stdout in bash to different files

Question

I need to make some bash script that stores all its input to file/pipe and reads its output from other file pipe and run forever. First part is like cat - > pipein and second is like cat pipeout . But how to make both parts simultaneously?

I also tried to mess with additional file descriptors but with no success.

Answer 1

Found an answer!

#!/bin/bash
cat pin &
cat >pout
wait