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Full Discussion: Script to change UNIX password
Top Forums Shell Programming and Scripting Script to change UNIX password Post 20160 by hugo_perez on Monday 22nd of April 2002 02:57:48 PM
Old 04-22-2002
The others commands are AIX commands (supper in SP2 environments) and a GNU tool, both for distribute files.

Whith rdist, you can distribute the following files:

/etc/passwd
/etc/groups
/etc/shadow

and if you use solaris 8

/etc/user_attr.



---------------------------------------

If only want to change one password, use "expect"
http://www.sunfreeware.com

ask the administrator to install expect and tcl.
(and give you acces to expect /usr/local/bin )

tcl
and
expect

(tcl is a pre-requisite of expect pakage).

Note: You need to create a expect file and call expect -f my_expect1

Example of my_expect1

spawn telnet [lindex $argv 0]
expect "login: "
send "[lindex $argv 1]\r"
expect "Password: "
send "[lindex $argv 2]\r"
expect "Sun Microsystems Inc. SunOS 5.8 Generic February 2000"
send "passwd\r"
expect "Enter login password: "
send "[lindex $argv 2]\r"
expect "New password: "
send "[lindex $argv 3]\r"
expect "e-enter new password: "
send "[lindex $argv 3]\r"
expect eof

Note: To call

expect -f my_expect1 <server> <user_name> <old_passwd> <new_passwd>

also you need to make a script to cal the previous line giving the apropiate parameters.

IMPORTANT: Is convenient that anybody was login into the server,
because with a ps he can view your passwd.


Regards. Hugo.
Last edited by hugo_perez; 04-22-2002 at 04:30 PM..
 

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LEARN ABOUT DEBIAN

viewsu

VIEW-OS(1)						      General Commands Manual							VIEW-OS(1)

NAME

       viewsu - change (virtual) user ID or become (virtual) superuser

SYNOPSIS

       viewsu [options] [username]

DESCRIPTION

       The viewsu command is used to become another user during a login session. Invoked without a username, viewsu defaults to becoming the supe-
       ruser. The optional argument - may be used to provide an environment similar to what the user would expect had the user logged in directly.
       This  command  is  the  View-OS	counterpart  of  the  su(1)  command.	The  value of $PATH is reset to /bin:/usr/bin for normal users, or
       /sbin:/bin:/usr/sbin:/usr/bin for the superuser. This may be changed with the ENV_PATH and ENV_SUPATH definitions in /etc/login.defs.

OPTIONS

       The options which apply to the viewsu command are:

       -c, --command COMMAND
	   Specify a command that will be invoked by the shell using its -c.

       -, -l, --login
	   Provide an environment similar to what the user would expect had the user logged in directly.

	   When - is used, it must be specified as the last viewsu option. The other forms (-l and --login) do not have this restriction.

       -s, --shell SHELL
	   The shell that will be invoked.

	   The invoked shell is chosen from (highest priority first):

	   o   The shell specified with --shell.

	   o   The shell indicated in the /etc/passwd entry for the target user.

	   o	/bin/sh if a shell could not be found by any above method.

SEE ALSO

       su(1), linux.defs(5)

AUTHORS

       View-OS is a project of the Computer Science Department, University of Bologna. Project Leader: Renzo Davoli.
       <http://www.sourceforge.net/projects/view-os>

       Howto's and further information can be found on the project wiki <wiki.virtualsquare.org>.

NOTE

       Most part of the text is taken from su(1).

VIEW-OS: a process with a view					  August 5, 2009							VIEW-OS(1)
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