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ZERO(4)
ZERO(4) FreeBSD Kernel Interfaces Manual ZERO(4)

NAME

zero — the zero device

DESCRIPTION

The zero device accepts and reads data as any ordinary (and willing) file, but throws away any data written to it, and returns an endless supply of null bytes when read.

FILES

/dev/zero

SEE ALSO

null(4)

HISTORY

A zero device appeared in 4.4BSD.
April 7, 1996 FreeBSD