Penguin

NULL

NULL

NAME DESCRIPTION NOTES FILES SEE ALSO


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 strange.

FILES

/dev/null /dev/zero

SEE ALSO

chown(1), mknod(1)


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