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RedHat 9 (Linux i386) - man page for zero (redhat section 4)

NULL(4) 				      Linux Programmer's Manual 				      NULL(4)

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 charac- ters. 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:mem /dev/null /dev/zero
NOTES
If these devices are not writable and readable for all users, many programs will act strange.
FILES
/dev/null /dev/zero
SEE ALSO
chown(1), mknod(1) Linux 1992-11-21 NULL(4)


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