changepass manpage

CHANGEPASS

NAME

changepass - update an user’s password

SYNOPSIS

changepass

DESCRIPTION

changepass is a chpasswd clone, it might be useful on platforms that doesn’t have such a command like Solaris.
Most GNU/Linux distributions have chpasswd (8), on FreeBSD you can use "pw usermod name -h 0" but many commercial Un*ces doesn’t have tool like this. An alternative is to update the user’s password in script with usermod
but it’s possible to see the encrypted password in the process list, which is not very secure.
changepass reads a list of user name and password pairs from stdin and updates the users passwords
Each line has format:
username:password

OPTIONS

-h,--help print this help
-n,--nopam don’t use pam
-p,--pam use pam (default)
-e,--encrypt password is already encrypted, this option
will disable pam
-m,--md5 use md5 algorithm, this option will
disable pam
-c,--crypt-method use des|md5|sha256|sha512 crypt method this
option will disable pam
-s,--sha-rounds number of sha2 rounds
-v,--verbose enable verbose output

USAGE

cat user_password_pairs | changepass

AUTHOR

Written by Staf Wagemakers <staf@wagemakers.be>

COPYRIGHT

Documentation

The documentation for CGIpaf is licensed under the terms of the FreeBSD Documentation License.

The FreeBSD Documentation License

Copyright (c) 2001 - 2020 Staf Wagemakers

Redistribution and use in source (plaintext, HTML) and ’compiled’ forms (SGML, HTML, PDF, PostScript, RTF and so forth) with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code (plaintext, HTML) must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in compiled form (transformed to other DTDs, converted to PDF, PostScript, RTF and other formats) must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS DOCUMENTATION IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Software

CGIpaf (the software) is licensed under the terms of the GNU General Public License version 2 or later.

Copyright (c) 2002, 2007 Staf Wagemakers.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU 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 General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.