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Full Discussion: passwd
Operating Systems HP-UX passwd Post 302109077 by sb008 on Friday 2nd of March 2007 03:58:20 PM
Old 03-02-2007
Quote:
Originally Posted by sysgate
cat /etc/passwd | head -100 | tail -1 && passwd <the-result>
I think this can be done with sed also.
From what I understand he doesn't want to change the password for the user who is on line 99 in the password file, but for all users in the password file he wants to set the password equal to the username added with +99.

If this is the case you have to be very carefull about it.

Do NOT change the password for system related accounts, some of them are
locked for a good reason.

Furthermore, it is not wise to set passwords to such a simple pattern, especially when your system can be reached from the outside world. Because your system will be hacked in no time.

Please clarify first if you actually want to set the password for each user to "<username>+99".

If this is the case, and it is really what you want, we can take it further from there.
 

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LEARN ABOUT SUSE

chpasswd

chpasswd(8)						      System Manager's Manual						       chpasswd(8)

NAME

       chpasswd - change user passwords in batch

SYNOPSIS

       chpasswd [-D binddn] [-P path] [-c des|md5|blowfish | -e] [file]

DESCRIPTION

       chpasswd  changes  passwords for user accounts in batch. It reads a list of login and password pairs from standard input or a file and uses
       this information to update the passwords of this user accounts. The named account must exist and the password age  will	be  updated.  Each
       input line is of the format:

		 user_name:password

       If  the	hash algorithmus is not given on the commandline, the value of GROUP_CRYPT or, if not specified, CRYPT from /etc/default/passwd is
       used as hash algorithmus.  If not configured, the traditinal des algorithmus is used.

OPTIONS

       -c des|md5|blowfish
	      This option specifies the hash algorithmus, which should be used to encrypt the passwords.

       -e     The passwords are expected to be in encrypted form. Normally the passwords are expected to be cleartext.

       -D, --binddn binddn
	      Use the Distinguished Name binddn to bind to the LDAP directory.	The user will be prompted for a password  for  simple  authentica-
	      tion.

       -P, --path path
	      The  passwd  and	shadow	files  are  located  below the specified directory path. chpasswd will use this files, not /etc/passwd and
	      /etc/shadow.

FILES

       /etc/default/passwd - default values for password hash

SEE ALSO

       passwd(1), passwd(5), shadow(5)

AUTHOR

       Thorsten Kukuk <kukuk@suse.de>

pwdutils							   Feburary 2004						       chpasswd(8)
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