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Full Discussion: Non-interactive password change?
Operating Systems Solaris Non-interactive password change? Post 302188444 by squall on Wednesday 23rd of April 2008 01:36:34 PM
Old 04-23-2008
Im guessing by "more direct", you mean "easier to implement".

The two methods you mentioned are pretty much the options available to you (which option you use depends on whether you want to use the encrypted or unencrypted password string).

Writing an expect script to reset a password is simple, just do a google search and you will have several working examples within minutes.

Using expect to run the "passwd" command protects the integrity of the file as it uses file locking to edit it, and a typo in your script is less likely to corrupt the shadow file.

Also if you are going to be changing passwords via a script keep in mind that it is bad security to leave passwords lying around hardcoded in scripts.
 

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LEARN ABOUT HPUX

vipw

vipw(1M)																  vipw(1M)

NAME

       vipw - edit the password file

SYNOPSIS

DESCRIPTION

       edits the password file while setting the appropriate locks, and does any necessary processing after the password file is unlocked.  If the
       password file is already being edited, you will be told to try again later.  The editor is used unless the environment  variable  indicates
       an alternate editor.

       performs  a  number  of	consistency checks on the password entry for and does not allow a password file with an incorrectly formatted root
       entry to be installed.  To help reduce the possibility of leaving the system in an unbootable state, root's entry is not  considered  prop-
       erly formatted if it has a user ID that is not zero, or if it has a shell other than or

       Please refer to passwd(4) and the manual for further details of password file format.

WARNINGS

       An file that is not removed when a system crashes prevents further editing of the file using after the system is rebooted.  is the standard
       lock used by all commands which knowingly modify

       Successful execution of is not sufficient for proper system operation.  To help maintain consistency with other system  databases,  editing
       of the password file with is generally discouraged.  Please use or to edit

AUTHOR

       was developed by the University of California, Berkeley.

FILES

SEE ALSO

       chfn(1), chsh(1), passwd(1), sam(1M), useradd(1M), usermod(1M), userdel(1M), passwd(4).

																	  vipw(1M)
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