PWD_UNMKDB(8) BSD System Manager's Manual PWD_UNMKDB(8)NAMEpwd_unmkdb — build plain-text password file from database
SYNOPSISpwd_unmkdb [-i db-file] [-o out-file]
DESCRIPTION
The pwd_unmkdb utility reads through a db(3) style secure password data‐
base generated by pwd_mkdb(8). It uses this info to generate the plain‐
text master.passwd(5) style file that was used to create it.
By default, it reads the file spwd.db in the current directory, and out‐
puts into master.passwd, also in the current directory.
The options are as follows:
-i db-file
Use the specified db file as the source, instead of the default
spwd.db.
-o out-file
Output into the specified file, instead of the default
master.passwd.
A simple, tool, to be sure. However, it's extremely useful if you lose
or corrupt /etc/master.passwd somehow. I know I've done it a few times
by fat-fingering in vipw(8), and it's surprisingly common to b0rk it when
using mergemaster(8). You can recover from backups the nightly runs
make, but you lose changes since then. Using pwd_unmkdb lets you get
exactly what the system is using, in a format you can work with.
The pwd_unmkdb utility exits zero on success, non-zero on failure.
FILES
spwd.db The default secure password database file used as the
source.
master.passwd The default flat-text password file the info is output
into.
SEE ALSOpasswd(5), pwd_mkdb(8)AUTHORS
The pwd_unmkdb program, and this manual page, were written by Matthew D.
Fuller ⟨fullermd@over-yonder.net⟩.
BSD June 21, 2003 BSD
