NAME [Toc] [Back]
mkfifo - make FIFO (named pipe) special files
SYNOPSIS [Toc] [Back]
mkfifo [-p] [-m mode] filename ...
DESCRIPTION [Toc] [Back]
mkfifo creates the FIFO special files named by its operand list. The
operands are taken sequentially in the order specified and, if the
user has write permission in the appropriate directory, the FIFO is
created with permissions 0666 modified by the user's file mode
creation mask (see umask(2)).
The specific actions performed are equivalent to calling
for each filename in the operand list (see mkfifo(3C)).
Options [Toc] [Back]
mkfifo recognizes the following command-line options:
-m mode After creating the FIFO special file, set the
permission bits of the new file to the specified
mode value. The mode option argument is a
symbolic mode string as defined in chmod(1).
(XPG4 Only.) In the symbolic mode strings, the
operators + and - will be interpreted relative to
an initial mode of a=rw.
-p Create any missing intermediate path name
EXTERNAL INFLUENCES [Toc] [Back]
LANG determines the locale to use for the locale categories when both
LC_ALL and the corresponding environment variable (beginning with LC_)
do not specify a locale. If LANG is not specified or is set to the
empty string, a default of "C" (see lang(5)) is used.
LC_ALL determines the locale to use to override any values for locale
categories specified by the settings of LANG or any environment
variables beginning with LC_.
LC_CTYPE determines the locale for the interpretation of sequences of
bytes of text data as characters (e.g., single- versus multibyte
characters in arguments).
If any internationalization variable contains an invalid setting,
mkfifo behaves as if all internationalization variables are set to
Hewlett-Packard Company - 1 - HP-UX 11i Version 2: August 2003
"C". See environ(5).
International Code Set Support [Toc] [Back]
Single-byte character code sets are supported.
RETURN VALUE [Toc] [Back]
mkfifo returns zero if invoked with at least one operand and if all
FIFO special files were created successfully. Otherwise, it prints a
diagnostic message and returns non-zero.
EXAMPLES [Toc] [Back]
The following command creates a FIFO special file named peacepipe in
the current directory:
SEE ALSO [Toc] [Back]
chmod(1), umask(1), mknod(1M), mkfifo(3C).
STANDARDS CONFORMANCE [Toc] [Back]
mkfifo: XPG3, XPG4, POSIX.2
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