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NULL(4) 		     Kernel Interfaces 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 4 AT&T UNIX.

FreeBSD ports 15.quarterly	 August 30, 2019			 NULL(4)

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