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NULL(4) Device Drivers Manual NULL(4)

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

full(4), zero(4)

HISTORY

A null device appeared in Version 7 AT&T UNIX.
June 5, 1993 Linux 4.9.0-9-amd64