103 lines
3.1 KiB
Groff
103 lines
3.1 KiB
Groff
.\" Copyright (c) 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" the Institute of Electrical and Electronics Engineers, Inc.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)mkfifo.1 8.2 (Berkeley) 1/5/94
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.\" $FreeBSD$
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.\"
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.Dd January 5, 1994
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.Dt MKFIFO 1
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.Os BSD 4.4
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.Sh NAME
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.Nm mkfifo
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.Nd make fifos
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.Sh SYNOPSIS
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.Nm
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.Op Fl m Ar mode
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.Ar fifo_name ...
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.Sh DESCRIPTION
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The
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.Nm
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command creates the fifos requested, in the order specified.
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.Pp
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The options are as follows:
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.Bl -tag -width indent
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.It Fl m
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Set the file permission bits of the created fifos to the
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specified mode, ignoring the
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.Xr umask 2
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of the calling process.
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The mode argument takes any format that can be specified to the
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.Xr chmod 1
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command.
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If a symbolic mode is specified, the op symbols
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.Dq +
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(plus) and
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.Dq -
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(hyphen) are interpreted relative to an assumed initial mode of
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.Dq a=rw
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(read and write permissions for all).
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.El
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.Pp
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If the
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.Fl m
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option is not specified, fifos are created with mode
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.Li \&0666
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modified by the
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.Xr umask 2
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of the calling process.
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The
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.Nm
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command requires write permission in the parent directory.
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.Sh DIAGNOSTICS
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The
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.Nm
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utility exits 0 on success, and >0 if an error occurs.
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.Sh STANDARDS
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The
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.Nm
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utility is expected to be
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.St -p1003.2
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compliant.
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.Sh SEE ALSO
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.Xr mkdir 1 ,
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.Xr rm 1 ,
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.Xr mkfifo 2 ,
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.Xr mknod 2 ,
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.Xr mknod 8
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.Sh HISTORY
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The
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.Nm
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command appeared in
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.Bx 4.4 .
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