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Add a zero(4) man page to describe /dev/zero. Update null(4) to xref

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this new man page.
This commit is contained in:
Mike Pritchard 1996-04-07 10:04:49 +00:00
parent e493905cd2
commit c4a856d3a0
3 changed files with 59 additions and 1 deletions
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3
share/man/man4/Makefile
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@ -5,7 +5,8 @@ MAN4= bpf.4 cd.4 ch.4 clnp.4 cltp.4 ddb.4 drum.4 esis.4 fd.4 fpa.4 \
lkm.4 lo.4 netintro.4 ns.4 \
nsip.4 null.4 pt.4 pty.4 route.4 \
scsi.4 sd.4 snp.4 spp.4 st.4 su.4 tcp.4 \
ttcp.4 termios.4 tp.4 tty.4 udp.4 uk.4 update.4 unix.4 worm.4 yp.4
ttcp.4 termios.4 tp.4 tty.4 udp.4 uk.4 update.4 unix.4 worm.4 yp.4 \
zero.4
MLINKS+=fd.4 stderr.4 fd.4 stdin.4 fd.4 stdout.4
MLINKS+=netintro.4 networking.4
MLINKS+=ipfirewall.4 ipacct.4 ipfirewall.4 ipfw.4 ipfirewall.4 ipaccounting.4

2
share/man/man4/null.4
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@ -49,6 +49,8 @@ device is always zero.
.Bl -tag -width /dev/null
.It Pa /dev/null
.El
.Sh SEE ALSO
.Xr zero 4
.Sh HISTORY
A
.Nm

55
share/man/man4/zero.4 Normal file
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@ -0,0 +1,55 @@
.\" Copyright (c) 1996
.\" Mike Pritchard <mpp@freebsd.org>. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by Mike Pritchard and
.\" contributors.
.\" 4. Neither the name of the author nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.Dd April 7, 1996
.Dt ZERO 4
.Os
.Sh NAME
.Nm zero
.Nd the zero device
.Sh DESCRIPTION
The
.Nm
device accepts and reads data as any ordinary (and willing)
file,
but throws away any data written to it, and returns an endless
supply of null bytes when read.
.Sh FILES
.Bl -tag -width /dev/zero
.It Pa /dev/zero
.El
.Sh SEE ALSO
.Xr null 4
.Sh HISTORY
A
.Nm
device appeared in
.Bx 4.4 .