Updated: 2022/Sep/29

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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

HISTORY
     A null device appeared in Version 4 AT&T UNIX.

NetBSD 10.99                    August 29, 2019                   NetBSD 10.99