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NetBSD 6.1.5 - man page for null (netbsd section 4)

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NULL(4) 			   BSD 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

HISTORY
     A null device appeared in Version 7 AT&T UNIX.

BSD					   June 5, 1993 				      BSD
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