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+.\" Copyright (c) 1993 Michael Haardt (michael@moria.de), Fri Apr  2 11:32:09 MET DST 1993
+.\"
+.\" This is free documentation; you can redistribute it and/or
+.\" modify it under the terms of the GNU General Public License as
+.\" published by the Free Software Foundation; either version 2 of
+.\" the License, or (at your option) any later version.
+.\"
+.\" The GNU General Public License's references to "object code"
+.\" and "executables" are to be interpreted as the output of any
+.\" document formatting or typesetting system, including
+.\" intermediate and printed output.
+.\"
+.\" This manual is distributed in the hope that it will be useful,
+.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
+.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+.\" GNU General Public License for more details.
+.\"
+.\" You should have received a copy of the GNU General Public
+.\" License along with this manual; if not, write to the Free
+.\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111,
+.\" USA.
+.\" 
+.\" Modified Sat Jul 24 17:00:12 1993 by Rik Faith (faith@cs.unc.edu)
+.TH NULL 4 1992-11-21 "Linux" "Linux Programmer's Manual"
+.SH NAME
+null, zero \- data sink
+.SH DESCRIPTION
+Data written on a \fBnull\fP or \fBzero\fP special file is discarded.
+.PP
+Reads from the \fBnull\fP special file always return end of file, whereas
+reads from \fBzero\fP always return \e0 characters.
+.LP
+\fBnull\fP and \fBzero\fP are typically created by:
+.RS
+.sp
+mknod -m 666 /dev/null c 1 3
+.br
+mknod -m 666 /dev/zero c 1 5
+.br
+chown root:mem /dev/null /dev/zero
+.sp
+.RE
+.SH NOTES
+If these devices are not writable and readable for all users, many
+programs will act strange.
+.SH FILES
+.I /dev/null
+.br
+.I /dev/zero
+.SH "SEE ALSO"
+.BR chown (1),
+.BR mknod (1)