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

# NAME

`dev_mkdb` — create /dev database

# SYNOPSIS

`dev_mkdb` |

# DESCRIPTION

The `dev_mkdb` command creates a hash(3) access method Berkeley 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 zeroed 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), dbopen(3), devname(3), kvm_nlist(3), ttyname(3), kvm_mkdb(8)

# HISTORY

The `dev_mkdb` command appeared in 4.3BSD-Net/2.

August 4, 2022 | Debian