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

# NAME

`dev_mkdb` —
create /dev database

# SYNOPSIS

`dev_mkdb` | [`-c`] [`-o` database] [directory]

# DESCRIPTION

The `dev_mkdb` command creates a cdbr(3) database in “/var/run/dev.cdb” which contains the names of all of the character and block special files in the specified directory, using the file type and the st_rdev field as the key. If no directory is specified, the “/dev” directory is used.

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.

The options are as follows:

`-c`
  Create a db(3) database for compatibility with libc versions and statically linked programs from before NetBSD 6.0. The default name is “/var/run/dev.db”.
`-o` database
  Put the output databases in the named file.

# 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)

# HISTORY

The `dev_mkdb` command appeared in 4.4BSD.

June 1, 2012 | NetBSD 9.5