www.LinuxHowtos.org

MKPASSWD

Section: Debian GNU/Linux (1)
Updated: 21 March 2008
Index Return to Main Contents

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.

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.