Name
null, zero — data sink
DESCRIPTION
Data written on a null
or zero
special file is
discarded.
Reads from the null
special file always
return end of file, whereas reads from zero
always return \0
characters.
null
and
zero
are typically
created by:
mknod −m 666 /dev/null c 1 3
mknod −m 666 /dev/zero c 1 5
chown root:root /dev/null /dev/zero
NOTES
If these devices are not writable and readable for all
users, many programs will act strangely.
FILES
/dev/null
/dev/zero
SEE ALSO
chown(1), mknod(1), full(4)
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"
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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)
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