#!/bin/bash

# cf. Creating password prompts using Bash, http://ubuntuforums.org/showthread.php?t=269592

stty_orig=$(stty -g) 

# Init some stuff...
pass=''
blank='false'

# Main loop executed once for each char typed...
while [[ "$blank" != "true" ]]; do
   stty -icanon -echo
   c=$(dd bs=6 count=1 2> /dev/null)

   # Check for a CR.
   if [ -z "$(echo "$c" | tr -d "\r\n")" ]; then
      blank='true'
   else
      stty echo
      echo -n "*"
      pass="$pass$c"
      stty -echo
   fi
done

stty icanon echo

echo
echo "$pass"

stty "$stty_orig"

exit 0

mysql -h localhost -u root
mysql> USE mysql;
mysql> UPDATE user SET Password=PASSWORD('root-pwd') WHERE user='root';
mysql> FLUSH PRIVILEGES;
mysql> EXIT

view saved passwords in windows

rundll32.exe keymgr.dll, KRShowKeyMgr

// description of your code here

#check last pwd change

1> use master
2> go
1> select name, pwdate from syslogins where name = 'wat'
2> go
 name                           pwdate                     
 ------------------------------ -------------------------- 
 wat                              Jul  3 2006 12:54PM 

(1 row affected)

#change pwd

sp_password   caller_passwd, new_passwd   [,   login_name  ] 
 - caller_passwd: old pwd
 - new_passwd
 - login_name: use only if you want to change other users pwd

In Terminal:

passwd root

Bad things can happen if you change the administrator password on OS X server the wrong way. The right way is to change it via Workgroup Manager (NOT System Preferences) or via this command in Terminal:

passwd admin

Jason's weblog post about using one password everywhere inspired this script, which generates a base-80 hash of your input string.

Feel free to replace MD5 with SHA1 or even `echo #{line} | sha -5`, to make it harder to guess which hashing mechanism was used.

Requires highline, which you can get with "gem install highline".

Warning! This does not echo your input string to the screen; when generating passwords for sites, you might want to generate it twice, to make sure you don't have any typos.

#!/usr/local/bin/ruby

require 'digest/md5'
require 'rubygems'
require 'highline/import'

CHARS = ("a".."z").to_a + ("A".."Z").to_a + (0..9).to_a + ["!","@","#","$","%","&",
"*","-","_","=","+",":","<",">",".",",","?","~"]

line = ask("enter your string: ") {|q| q.echo = false}

n = Digest::MD5.hexdigest("#{line}").hex

pass = []

while n > 0
  pass << CHARS[n.divmod(CHARS.size)[1]]
  n = n.divmod(CHARS.size)[0]
end

puts pass.to_s

chmod 7xx it and run it, and there you go!

example:

albus:~ matt$ ./password.rb 
enter your string:  
6irO:B=5MFiOcb6Uv3ER