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Full Discussion: changing unix user password using script
Operating Systems AIX changing unix user password using script Post 302134898 by sysgate on Tuesday 4th of September 2007 09:19:59 AM
Old 09-04-2007
use expect script :
Code:
#!/usr/local/bin/expect

set timeout -1 
spawn passwd [lindex $argv 0]
set password 1234
expect "*password:*"
sleep 1
send "$password\r"
expect "*password again:*"
sleep 1
send "$password\r"
expect eof

call the script like :

Code:
for ((i=1; i<=30; i++)) do changepass.tcl eda$i; done

 

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LEARN ABOUT DEBIAN

srptool

srptool(1)						      General Commands Manual							srptool(1)

NAME

       srptool - Simple SRP password tool

SYNOPSIS

       srptool [options]

DESCRIPTION

       Very simple program that emulates the programs in the Stanford SRP (Secure Remote Password) libraries using GnuTLS.  It is intended for use
       in places where you don't expect SRP authentication to be the used for system users.

       In brief, to use SRP you need to create two files. These are the password file that holds the users and the verifiers associated with  them
       and the configuration file to hold the group parameters (called tpasswd.conf).

OPTIONS

       --bits BITS
	      specify the number of bits for prime numbers (used only when the --create-conf option is used).

       --create-conf FILE
	      Generate a tpasswd.conf file.

       -h, --help
	      Prints a short reminder of the command line options.

       -i, --index INDEX
	      Specify the index of the parameters in tpasswd.conf to use.

       -p, --passwd FILE
	      Specify a password file.

       -c, --passwd-conf FILE
	      Specify a password configuration file.

       -s, --salt SALT
	      Specify salt size for crypt algorithm.

       -u, --username username
	      Specify username.

       --verify
	      Just verify password.

EXAMPLES

       To create tpasswd.conf which holds the g and n values for SRP protocol (generator and a large prime), run:

	      $ srptool --create-conf /etc/tpasswd.conf

       This  command will create /etc/tpasswd and will add user 'test' (you will also be prompted for a password). Verifiers are stored by default
       in the way libsrp expects.

	      $ srptool --passwd /etc/tpasswd 
		  --passwd-conf /etc/tpasswd.conf -u test

       This command will check against a password. If the password matches the one in /etc/tpasswd you will get an ok.

	      $ srptool --passwd /etc/tpasswd 
		  --passwd-conf /etc/tpasswd.conf --verify -u test

AUTHOR

       Nikos Mavrogiannopoulos <nmav@gnutls.org> and others; see /usr/share/doc/gnutls-bin/AUTHORS for a complete list.

       This manual page was written by Ivo Timmermans <ivo@debian.org>, for the Debian GNU/Linux system (but may be used by others).

								February 21st 2005							srptool(1)
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