NAME
vipw —
edit the password file
SYNOPSIS
vipw |
DESCRIPTION
vipw edits the password file after setting
the appropriate locks, and does any necessary processing after the password
file is unlocked. If the password file is already locked for editing by
another user, vipw will ask you to try again later.
The default editor for vipw is
vi(1).
vipw performs a number of consistency
checks on the password entries, and will not allow a password file with a
“mangled” entry to be installed. If
vipw rejects the new password file, the user is
prompted to re-enter the edit session.
Once the information has been verified,
vipw uses
pwd_mkdb(8) to update the user database. This is run in the
background, and, at very large sites could take several minutes. Until this
update is completed, the password file is unavailable for other updates and
the new information is not available to programs.
Which type of cipher is used to encrypt the password information depends on the configuration in login.conf(5).
ENVIRONMENT
If the following environment variable exists it will be utilized
by vipw:
EDITOR- The editor specified by the string
EDITORwill be invoked instead of the default editor vi(1).
FILES
- /etc/master.passwd
- Current password file.
- /etc/passwd
- A Version 7 format password file.
- /etc/ptmp
- Password lock file.
- /etc/pwd.db
- Insecure password database file.
- /etc/spwd.db
- Secure password database file.
SEE ALSO
chpass(1), passwd(1), login.conf(5), passwd(5), adduser(8), pwd_mkdb(8)
HISTORY
The vipw command appeared in
4.0BSD.