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+.\"
+.\" Sun Microsystems, Inc. gratefully acknowledges The Open Group for
+.\" permission to reproduce portions of its copyrighted documentation.
+.\" Original documentation from The Open Group can be obtained online at
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+.\"
+.\" The Institute of Electrical and Electronics Engineers and The Open
+.\" Group, have given us permission to reprint portions of their
+.\" documentation.
+.\"
+.\" In the following statement, the phrase ``this text'' refers to portions
+.\" of the system documentation.
+.\"
+.\" Portions of this text are reprinted and reproduced in electronic form
+.\" in the SunOS Reference Manual, from IEEE Std 1003.1, 2004 Edition,
+.\" Standard for Information Technology -- Portable Operating System
+.\" Interface (POSIX), The Open Group Base Specifications Issue 6,
+.\" Copyright (C) 2001-2004 by the Institute of Electrical and Electronics
+.\" Engineers, Inc and The Open Group.  In the event of any discrepancy
+.\" between these versions and the original IEEE and The Open Group
+.\" Standard, the original IEEE and The Open Group Standard is the referee
+.\" document.  The original Standard can be obtained online at
+.\" http://www.opengroup.org/unix/online.html.
+.\"
+.\" This notice shall appear on any product containing this material.
+.\"
+.\" The contents of this file are subject to the terms of the
+.\" Common Development and Distribution License (the "License").
+.\" You may not use this file except in compliance with the License.
+.\"
+.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+.\" or http://www.opensolaris.org/os/licensing.
+.\" See the License for the specific language governing permissions
+.\" and limitations under the License.
+.\"
+.\" When distributing Covered Code, include this CDDL HEADER in each
+.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+.\" If applicable, add the following below this CDDL HEADER, with the
+.\" fields enclosed by brackets "[]" replaced with your own identifying
+.\" information: Portions Copyright [yyyy] [name of copyright owner]
+.\"
+.\"
+.\" Copyright 1989 AT&T
+.\" Copyright (c) 1992, X/Open Company Limited  All Rights Reserved
+.\" Portions Copyright (c) 2009, Sun Microsystems, Inc.  All Rights Reserved
+.\"
+.TH MKFIFO 8 "Jun 24, 2020"
+.SH NAME
+mkfifo \- make FIFO special file
+.SH SYNOPSIS
+.nf
+\fB/usr/bin/mkfifo\fR [\fB-m\fR \fImode\fR] \fIfile\fR...
+.fi
+
+.SS "ksh93"
+.nf
+mkfifo [ \fIoptions\fR ] \fIfile\fR...
+.fi
+
+.SH DESCRIPTION
+.SS "/usr/bin/mkfifo"
+The \fBmkfifo\fR utility creates the \fBFIFO\fR special files named by its
+argument list. The arguments are taken sequentially, in the order specified;
+and each \fBFIFO\fR special file is either created completely or, in the case
+of an error or signal, not created at all.
+.sp
+.LP
+If errors are encountered in creating one of the special files, \fBmkfifo\fR
+writes a diagnostic message to standard error and continues with the
+remaining arguments, if any.
+.sp
+.LP
+The \fBmkfifo\fR utility calls the library routine \fBmkfifo\fR(3C), with a
+\fIpath\fR argument equivalent to the \fIfile\fR argument from the command line,
+and \fImode\fR is set to the equivalent of \fBa=rw\fR, modified by the current
+value of the file mode creation mask \fBumask\fR(1).
+.SS "ksh93"
+The \fBmkfifo\fR utility creates one or more \fBFIFO\fRs. By default, the mode
+of the created FIFO is \fBa=rw\fR minus the bits set in \fBumask\fR(1).
+.SH OPTIONS
+.SS "/usr/bin/mkfifo"
+The following option is supported for \fB/usr/bin/mkfifo\fR:
+.sp
+.ne 2
+.na
+\fB\fB-m\fR \fImode\fR\fR
+.ad
+.RS 11n
+Set the file permission bits of the newly-created \fBFIFO\fR to the specified
+\fImode\fR value. The \fImode\fR option-argument will be the same as the
+\fImode\fR operand defined for the \fBchmod\fR(1) command. For a
+symbolic mode option-argument, the \fIop\fR characters \fB+\fR and \fB\(mi\fR
+will be interpreted relative to an assumed initial mode of \fBa=rw\fR.
+.RE
+
+.SS "ksh93"
+The following option is supported for \fBksh93\fR:
+.sp
+.ne 2
+.na
+\fB\fB-m\fR \fImode\fR\fR
+.ad
+.br
+.na
+\fB\fB--mode=\fR\fImode\fR\fR
+.ad
+.RS 15n
+Set the mode of the created FIFO to \fImode\fR. The \fImode\fR option-argument
+is a symbolic or octal mode as in \fBchmod\fR(1). Relative modes assume an
+initial mode of \fBa=rw\fR.
+.RE
+
+.SH OPERANDS
+The following operand is supported:
+.sp
+.ne 2
+.na
+\fB\fIfile\fR\fR
+.ad
+.RS 8n
+A path name of the \fBFIFO\fR special file to be created.
+.RE
+
+.SH USAGE
+See \fBlargefile\fR(7) for the description of the behavior of \fBmkfifo\fR when
+encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
+.SH ENVIRONMENT VARIABLES
+See \fBenviron\fR(7) for descriptions of the following environment variables
+that affect the execution of \fBmkfifo\fR: \fBLANG\fR, \fBLC_ALL\fR,
+\fBLC_CTYPE\fR, \fBLC_MESSAGES\fR, and \fBNLSPATH\fR.
+.SH EXIT STATUS
+The following exit values are returned:
+.sp
+.ne 2
+.na
+\fB\fB0\fR\fR
+.ad
+.RS 6n
+All the specified \fBFIFO\fR special files were created successfully.
+.RE
+
+.sp
+.ne 2
+.na
+\fB\fB>0\fR\fR
+.ad
+.RS 6n
+An error occurred.
+.RE
+
+.SH ATTRIBUTES
+See \fBattributes\fR(7) for descriptions of the following attributes:
+.sp
+
+.sp
+.TS
+box;
+c | c
+l | l .
+ATTRIBUTE TYPE	ATTRIBUTE VALUE
+_
+Interface Stability	Standard
+.TE
+
+.SH SEE ALSO
+.BR chmod (1),
+.BR umask (1),
+.BR mkfifo (3C),
+.BR attributes (7),
+.BR environ (7),
+.BR largefile (7),
+.BR standards (7)