sunos man page for null

null(7D)							      Devices								  null(7D)

NAME
       null - the null file, also called the null device

SYNOPSIS
       /dev/null

DESCRIPTION
       Data written on the null special file, /dev/null, is discarded.

       Reads from a null special file always return 0 bytes.

       Mapping	a  null  special file creates an address reservation of a length equal to the length of the mapping, and rounded up to the nearest
       page size as returned by sysconf(3C).  No resources are consumed by the reservation. Mappings can be placed in the resulting address  range
       via subsequent calls to mmap with the -MAP_FIXED option set.

FILES
       /dev/null

SEE ALSO
       mmap(2), sysconf(3C)

SunOS 5.10							   4 April 2001 							  null(7D)