mkpasswd(1) [linux man page]
MKPASSWD(1) Debian GNU/Linux MKPASSWD(1) NAME
mkpasswd - Overfeatured front end to crypt(3) SYNOPSIS
mkpasswd PASSWORD SALT DESCRIPTION
mkpasswd encrypts the given password with the crypt(3) libc function using the given salt. OPTIONS
-S, --salt=STRING Use the STRING as salt. It must not contain prefixes such as $1$. -R, --rounds=NUMBER Use NUMBER rounds. This argument is ignored if the method chosen does not support variable rounds. For the OpenBSD Blowfish method this is the logarithm of the number of rounds. -m, --method=TYPE Compute the password using the TYPE method. If TYPE is help then the available methods are printed. -5 Like --method=md5. -P, --password-fd=NUM Read the password from file descriptor NUM instead of using getpass(3). If the file descriptor is not connected to a tty then no other message than the hashed password is printed on stdout. -s, --stdin Like --password-fd=0. ENVIRONMENT
MKPASSWD_OPTIONS A list of options which will be evalued before the ones specified on the command line. BUGS
If the --stdin option is used, passwords containing some control characters may not be read correctly. This programs suffers of a bad case of featuritis. SEE ALSO
passwd(1), passwd(5), crypt(3), getpass(3) AUTHOR
mkpasswd and this man page were written by Marco d'Itri <md@linux.it> and are licensed under the terms of the GNU General Public License, version 2 or higher. Marco d'Itri 21 March 2008 MKPASSWD(1)
Check Out this Related Man Page
MKPASSWD(1) General Commands Manual MKPASSWD(1) NAME
mkpasswd - generate new password, optionally apply it to a user SYNOPSIS
mkpasswd [ args ] [ user ] INTRODUCTION
mkpasswd generates passwords and can apply them automatically to users. mkpasswd is based on the code from Chapter 23 of the O'Reilly book "Exploring Expect". USAGE
With no arguments, mkpasswd returns a new password. mkpasswd With a user name, mkpasswd assigns a new password to the user. mkpasswd don The passwords are randomly generated according to the flags below. FLAGS
The -l flag defines the length of the password. The default is 9. The following example creates a 20 character password. mkpasswd -l 20 The -d flag defines the minimum number of digits that must be in the password. The default is 2. The following example creates a password with at least 3 digits. mkpasswd -d 3 The -c flag defines the minimum number of lowercase alphabetic characters that must be in the password. The default is 2. The -C flag defines the minimum number of uppercase alphabetic characters that must be in the password. The default is 2. The -s flag defines the minimum number of special characters that must be in the password. The default is 1. The -p flag names a program to set the password. By default, /etc/yppasswd is used if present, otherwise /bin/passwd is used. The -2 flag causes characters to be chosen so that they alternate between right and left hands (qwerty-style), making it harder for anyone watching passwords being entered. This can also make it easier for a password-guessing program. The -v flag causes the password-setting interaction to be visible. By default, it is suppressed. EXAMPLE
The following example creates a 15-character password that contains at least 3 digits and 5 uppercase characters. mkpasswd -l 15 -d 3 -C 5 SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995. AUTHOR
Don Libes, National Institute of Standards and Technology mkpasswd is in the public domain. NIST and I would appreciate credit if this program or parts of it are used. 22 August 1994 MKPASSWD(1)