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
     full(4), null(4)

HISTORY
     A zero device appeared in 4.4BSD.

FreeBSD 13.1-RELEASE-p6          April 7, 1996         FreeBSD 13.1-RELEASE-p6