1.\" $NetBSD: mkfifo.1,v 1.9 2002/02/08 01:36:28 ross Exp $ 2.\" 3.\" Copyright (c) 1990, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" the Institute of Electrical and Electronics Engineers, Inc. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the University of 20.\" California, Berkeley and its contributors. 21.\" 4. Neither the name of the University nor the names of its contributors 22.\" may be used to endorse or promote products derived from this software 23.\" without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35.\" SUCH DAMAGE. 36.\" 37.\" @(#)mkfifo.1 8.2 (Berkeley) 1/5/94 38.\" 39.Dd January 5, 1994 40.Dt MKFIFO 1 41.Os 42.Sh NAME 43.Nm mkfifo 44.Nd make fifos 45.Sh SYNOPSIS 46.Nm 47.Op Fl m Ar mode 48.Ar fifo_name ... 49.Sh DESCRIPTION 50.Nm 51creates the fifos requested, in the order specified, 52using mode 53.Li \&0666 54modified by the current 55.Xr umask 2 . 56.Pp 57The options are as follows: 58.Bl -tag -width Ds 59.It Fl m 60Set the file permission bits of newly-created directories to 61.Ar mode . 62The mode is specified as in 63.Xr chmod 1 . 64In symbolic mode strings, the 65.Dq + 66and 67.Dq - 68operators are interpreted relative to an assumed initial mode of 69.Dq a=rw 70.El 71.Pp 72.Nm 73requires write permission in the parent directory. 74.Pp 75.Nm 76exits 0 if successful, and \*[Gt]0 if an error occurred. 77.Sh SEE ALSO 78.Xr mkdir 1 , 79.Xr rm 1 , 80.Xr mkfifo 2 , 81.Xr mknod 8 82.Sh STANDARDS 83The 84.Nm 85utility is expected to be 86.St -p1003.2-92 87compliant. 88.Sh HISTORY 89.Nm 90command appeared in 91.Bx 4.4 . 92