MKFIFO(1) MKFIFO(1)
NAME
mkfifo - make FIFOs (named pipes)
SYNOPSIS
mkfifo [options] file...
POSIX options: [-m mode] [--]
GNU options (shortest form): [-m mode] [--help] [--ver-
sion] [--]
DESCRIPTION
mkfifo creates FIFOs (also called "named pipes") with the
specified filenames.
A "FIFO" is a special file type that permits independent
processes to communicate. One process opens the FIFO file
for writing, and another for reading, after which data can
flow as with the usual anonymous pipe in shells or else-
where.
By default, the mode of created FIFOs is 0666 (`a+rw')
minus the bits set in the umask.
OPTIONS
-m mode, --mode=mode
Set the mode of created FIFOs to mode, which can be
symbolic as in chmod(1) and uses the default mode
as the point of departure.
-- Terminate option list.
GNU STANDARD OPTIONS
--help Print a usage message on standard output and exit
successfully.
--version
Print version information on standard output, then
exit successfully.
-- Terminate option list.
ENVIRONMENT
The variables LANG, LC_ALL, LC_CTYPE and LC_MESSAGES have
the usual meaning.
CONFORMING TO
POSIX 1003.2
NOTES
This page describes mkfifo as found in the fileutils-4.0
package; other versions may differ slightly. Mail correc-
tions and additions to aeb@cwi.nl. Report bugs in the
program to fileutils-bugs@gnu.ai.mit.edu.
GNU fileutils 4.0 November 1998 1