POSIX shell equivalent to <()

Question

<(commands ...)in bash / zsh makes the output behavior as a file. Is there a POSIX equivalent?

Answer 1

mkfifo foo.fifo

## if your "commands" is multiple commands
# { commands ...; } >foo.fifo &

# otherwise, if it just one
commands ... >foo.fifo &

something_else foo.fifo

- nearest available equivalent

something_else <( commands ... )