Setting up pipelines reading from named pipes without blocking in bash

Question

I\'m looking to call a subprocess with a file descriptor opened to a given pipe such that the open() call does not hang waiting for the other side of the pipe to receive a c

Answer 1

The only way I know getting this kind of result is a hack:

mkfifo /tmp/foobar.in
mkfifo /tmp/foobar.out
( cat /tmp/foobar.out &
some_program --command-fd=5 5

perhaps this helps :-)