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OpenDarwin 7.2.1 - man page for dev_mkdb (opendarwin section 8)

DEV_MKDB(8)			   BSD System Manager's Manual			      DEV_MKDB(8)

NAME
     dev_mkdb -- create /dev database

SYNOPSIS
     dev_mkdb

DESCRIPTION
     The dev_mkdb command creates a db(3) hash access method database in ``/var/run/dev.db''
     which contains the names of all of the character and block special files in the ``/dev''
     directory, using the file type and the st_rdev field as the key.

     Keys are a structure containing a mode_t followed by a dev_t, with any padding zero'd out.
     The former is the type of the file (st_mode & S_IFMT), the latter is the st_rdev field.

FILES
     /dev	      Device directory.
     /var/run/dev.db  Database file.

SEE ALSO
     ps(1), stat(2), db(3), devname(3), kvm_nlist(3), ttyname(3), kvm_mkdb(8)

HISTORY
     The dev_mkdb command appeared in 4.4BSD.

BSD					   June 6, 1993 				      BSD


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