mkfifo - make fifos
mkfifo [-m mode] fifo_name ...
The mkfifo(1) utility creates the first in/first outs
(FIFOs) requested in the order specified, using mode
The options are as follows:
The mkfifo(1) utility requires write permission in the parent directory.
The mkfifo(1) utility exits with 0 if successful, and >0 if an error occurred.