We all know the best way to have a secure password is for it to be random. There are a ton of sites out there that will give you a password, but your Linux command line can do it for you with one command. You may need to install it with your favorite package manager:

$ sudo apt-get install makepasswd

$ makepasswd

Here’s a readout of the man page:

makepasswd v1.10, a utility to generate and/or encrypt passwords.

Copyright (c) 1997-1999 by Rob Levin <[email protected]>.  All rights are reserved by
the author.  This program may be used under the terms of version 2 of the
GNU Public License.

Last modified on Monday, 7 April 1999 at 22:56 (UCT).

Format:          makepasswd [option...]

Options are:

--chars=N        Generate passwords with exactly N characters (do not use with
                       options --minchars and --maxchars).
--clearfrom=FILE Use a clear password from FILE instead of generating passwords.
                       Requires the --crypt or --crypt-md5 option; may not be
                       used with options --chars, --maxchars, --minchars,
                       --count, --string, --nocrypt.  Trailing newlines are
                       ignored, other whitespace is not.
--count=N        Produce a total of N passwords (the default is one).
--crypt          Produce encrypted passwords.
--crypt-md5      Produce encrypted passwords using the MD5 digest (hash)
--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 this help display.
--maxchars=N     Generate passwords with at most N characters (default=10).
--minchars=N     Generate passwords with at least N characters (default=8).
--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.  This option
                       generates predictable passwords, and should normally
                       be avoided.
--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. ;)
--repeatpass=N   Use each password N times (4096 maximum, --crypt or
                       --crypt-md5 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.

Posted by Chris Klosowski

Chris Klosowski is the President of Easy Digital Downloads, the easiest way to sell your digital products with WordPress. Trusted by over 50,000 smart store owners.