NULL(4) 386BSD Programmer's Manual NULL(4)
NAME
zero - the zero-fill device
DESCRIPTION
The zero device reads as if an infinitely long file of zeros. Like the
null(4) device, the zero device accepts and reads data as any ordinary
(and willing) file - but throws it away. The length of the zero device is
always zero.
FILES
/dev/null
BSD Experimental June 28, 1994 1