githubmirror/libuser

apps/lpasswd.1
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Miloslav Trmač
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.\" A man page for lpasswd
.\" Copyright (C) 2005 Red Hat, Inc.
.\"
.\" This is free software; you can redistribute it and/or modify it under
.\" the terms of the GNU Library General Public License as published by
.\" the Free Software Foundation; either version 2 of the License, or
.\" (at your option) any later version.
.\"
.\" This program is distributed in the hope that it will be useful, but
.\" WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
.\" General Public License for more details.
.\"
.\" You should have received a copy of the GNU Library General Public
.\" License along with this program; if not, write to the Free Software
.\" Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
.\"
.\" Author: Miloslav Trmac <mitr@redhat.com>
.TH lpasswd 1 "Jan 12 2005" libuser

.SH NAME
lpasswd \- Change group or user password

.SH SYNOPSIS
lpasswd [\fIOPTION\fR]... [\fIname\fR]

.SH DESCRIPTION
Changes password of user or group \fIname\fR.

If the \fIname\fR argument is not provided,
username of the invoking user is used;
the \fIname\fR argument is ignored if
.B lpasswd
is run set-uid to a different user.

Entering an empty password (by pressing Enter)
aborts the password setting operation.

.SH OPTIONS
.TP
\fB\-F\fR, \fB\-\-plainpassword-fd\fR=\fIfd\fR
Read password from file descriptor \fIfd\fR, terminated by end of file,
\fB'\\r'\fR or \fB'\\n'\fR.

.TP
\fB\-f\fR, \fB\-\-password-fd\fR=\fIfd\fR
Read password hash from file descriptor \fIfd\fR, terminated by end of file,
\fB'\\r'\fR or \fB'\\n'\fR.

.TP
\fB\-g\fR, \fB\-\-group\fR
Change password of group \fIname\fR.
By default the password of user \fIname\fR is changed.

.TP
\fB\-i\fR, \fB\-\-interactive\fR 
Ask all questions when connecting to the user database,
even if default answers are set up in
.B libuser
configuration.

.TP
\fB\-P\fR, \fB\-\-plainpassword\fR=\fIpassword\fR
Set the password to \fIpassword\fR.
Note that the password can be viewed while running
.BR lpasswd
using tools such as
.BR ps (1)\fR.

.TP
\fB\-p\fR, \fB\-\-password\fR=\fIencrypted\fR
Set the password to the password represented by the hash \fIencrypted\fR.
Note that the hash can be viewed while running
.BR lpasswd
using tools such as
.BR ps (1)\fR.

.SH EXIT STATUS
The exit status is 0 on success, nonzero on error.