mkfifo creates the FIFOs requested, in the order
specified, using mode 0666 modified by the current
umask(2). It requires write permission in
the parent directory.
The options are as follows:
- Set the file permission bits of newly created FIFOs to
mode. The mode argument can be in any of the formats
specified to the chmod(1) utility. If a
symbolic mode is specified, the operators
-’ are interpreted relative to an
initial mode of “a=rw”.
mkfifo utility exits 0 on success,
and >0 if an error occurs.
mkfifo utility is compliant with the
IEEE Std 1003.1-2008 (“POSIX.1”)
mkfifo command appeared in