man/man1m/mkfifo.1m

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 mkfifo 1M "11 Aug 2009" "SunOS 5.11" "System Administration Commands"
 NAME
mkfifo - make FIFO special file
 SYNOPSIS

/usr/bin/mkfifo [-m mode] path...


 "ksh93"

mkfifo [ options ] file...


 DESCRIPTION
 "/usr/bin/mkfifo"

The mkfifo utility creates the FIFO special files named by its
argument list. The arguments are taken sequentially, in the order specified;
and each FIFO special file is either created completely or, in the case
of an error or signal, not created at all.

If errors are encountered in creating one of the special files, mkfifo
writes a diagnostic message to the standard error and continues with the
remaining arguments, if any.

The mkfifo utility calls the library routine mkfifo(3C), with the
path argument is passed as the path argument from the command line,
and mode is set to the equivalent of a=rw, modified by the current
value of the file mode creation mask umask(1).
 "ksh93"

The mkfifo utility creates one or more FIFOs. By default, the mode
of the created FIFO is a=rw minus the bits set in umask(1).
 OPTIONS
 "/usr/bin/ksh93"

The following option is supported for /usr/bin/mkfifo:

-m mode

Set the file permission bits of the newly-created FIFO to the specified
mode value. The mode option-argument will be the same as the
mode operand defined for the chmod(1) command. In
<symbolicmode> strings, the op characters + and -
will be interpreted relative to an assumed initial mode of a=rw.


 "ksh93"

The following option is supported for ksh93:

-m mode

--mode=mode

Set the mode of the created FIFO to mode. The mode option-argument
is a symbolic or octal mode as in chmod(1). Relative modes assume an
initial mode of a=rw.


 OPERANDS

The following operand is supported:

file

A path name of the FIFO special file to be created.


 USAGE

See largefile(5) for the description of the behavior of mkfifo when
encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
 ENVIRONMENT VARIABLES

See environ(5) for descriptions of the following environment variables
that affect the execution of mkfifo: LANG, LC_ALL,
LC_CTYPE, LC_MESSAGES, and NLSPATH.
 EXIT STATUS

The following exit values are returned:

0

All the specified FIFO special files were created successfully.


>0

An error occurred.


 ATTRIBUTES

See attributes(5) for descriptions of the following attributes:


ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilityStandard


 SEE ALSO

chmod(1), umask(1), mkfifo(3C), attributes(5),
environ(5), largefile(5), standards(5)