mkfifo - make a named pipe
mkfifo [-m mode] fifo ...
-m Create fifo with specified mode
mkfifo pipe # Create pipe in the current directory
mkfifo -m a+w systatus
# Create the systatus writable by all
The specified fifo special files are created. If the -m flag is used,
this will be equivalent to a chmod on the fifo special file after its
creation.
chmod(1), mknod(2), mknod(8).