Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   22533 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

makepasswd(1)		     UNIX Reference Manual		 makepasswd(1)

NAME
       makepasswd - generate and/or encrypt passwords

SYNOPSIS
       makepasswd [ --chars N ] [ --clearfrom file ] [ --count N ] [ --crypt |
       --nocrypt ] [ --cryptsalt N ] [ --help ] [ --maxchars N ] [  --minchars
       N  ]  [ --randomseed N ] [ --rerandom N ] [ --repeatpass N ] [ --string
       string ] [ --verbose | --noverbose ]

DESCRIPTION
       makepasswd generates true random passwords  by  using  the  /dev/random
       feature	of Linux, with the emphasis on security over pronounceability.
       It can also encrypt plaintext passwords given on the command line.

OPTIONS
       --chars N
	      Generate passwords with exactly N characters (do	not  use  with
	      options --minchars and --maxchars).

       --clearfrom FILE
	      Use   password   from  FILE  instead  of	generating  passwords.
	      Requires the --crypt option; may not be used with these options:
	      --chars,	--maxchars,  --minchars, --count, --string, --nocrypt.
	      Trailing newlines are removed but other white space is not.

       --count N
	      Produce a total of N passwords (the default is one).

       --crypt
	      Produce encrypted passwords.

       --cryptsalt N
	      Use crypt() salt N, a positive number <= 4096.  If random	 seeds
	      are desired, specify a zero value (the default).

       --help Ignore other operands and produce only a help display.

       --maxchars N
	      Generate passwords with at most N characters (default = 8).

       --minchars N
	      Generate passwords with at least N characters (default = 6).

       --nocrypt
	      Do not encrypt the generated password(s) (the default).

       --noverbose
	      Display no labels on output (the default).

       --randomseed N
	      Use  random number seed N, between 0 and 2^32 inclusive.	A zero
	      value results in a real-random seed.

       --rerandom N
	      Set the random seed value every N values used.  Specify zero  to
	      use  a single seed value (the default). Specify one to get true-
	      random passwords, but plan on hitting  the  CONTROL  key	a  lot
	      while  it's  running.   The  Linux  entropy  device  is  quickly
	      depleted and keystroke intervals are one source of  new  random‐
	      ness.

       --repeatpass N
	      Use each password N times (4096 maximum, --crypt must be set and
	      --cryptsalt may not be set).

       --string STRING
	      Use the characters in STRING to generate random passwords.

       --verbose
	      Display labelling information on output.

HISTORY
       makepasswd was originally part of the mkircconf program	used  to  cen‐
       trally  administer  the Linux Internet Support Cooperative IRC network.
       It may potentially be of use in any situation where passwords  must  be
       secure and need not be memorized by humans.

COPYRIGHT
       Copyright  (c)  1997  by	 lilo  <lilo@linpeople.org>.   All  rights are
       reserved by the author.	This program may be used under	the  terms  of
       version 2 of the GNU Public License.

SEE ALSO
       passwd(5)

Debian Distribution		1998 February 9			 makepasswd(1)

Vote for polarhome