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Linux Programmer's Manual (4)
null, zero - data sink
Data written to a
special file is discarded.
Reads from the
special file always return end of file (i.e.,
returns 0), whereas
always return bytes containing zero (\0 characters).
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
If these devices are not writable and readable for all users, many
programs will act strangely.
This page is part of release 3.66 of the Linux
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- SEE ALSO
This document was created by
using the manual pages.
Time: 21:43:04 GMT, July 12, 2014