NAME
mkfifo —
make fifos
SYNOPSIS
mkfifo |
[-m mode]
fifo_name ... |
DESCRIPTION
Themkfifo utility creates the fifos requested, in the
order specified.
The options are as follows:
-m- Set the file permission bits of the created fifos to the specified mode,
ignoring the umask(2) of the calling process. The
mode argument takes any format that can be specified
to the chmod(1) command. If a symbolic mode is specified, the op
symbols ‘
+’ (plus) and ‘-’ (hyphen) are interpreted relative to an assumed initial mode of “a=rw” (read and write permissions for all).
If the -m option is not specified, fifos
are created with mode 0666 modified by the
umask(2) of the calling process. The mkfifo
utility requires write permission in the parent directory.
EXIT STATUS
The mkfifo utility exits 0 on
success, and >0 if an error occurs.
SEE ALSO
STANDARDS
The mkfifo utility is expected to be
IEEE Std 1003.2 (“POSIX.2”)
compliant.
HISTORY
The mkfifo command appeared in
4.4BSD.