NULL(4) - Device Drivers Manual #
NULL(4) - Device Drivers Manual
NAME #
null - the null device
DESCRIPTION #
The null device accepts and reads data as any ordinary (and willing) file, but throws it away. The length of the null device is always zero.
FILES #
/dev/null
SEE ALSO #
HISTORY #
null first appeared in Version 4 AT&T UNIX as an empty file, /dev/null, which returned end of file when being read from. An implementation which could also be written to first appeared in Version 5 AT&T UNIX.
OpenBSD 7.5 - August 31, 2019