Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Users who have never changed their password from /etc/shadow.
Top Forums Shell Programming and Scripting Users who have never changed their password from /etc/shadow. Post 302521701 by catalint on Thursday 12th of May 2011 04:21:20 AM
Old 05-12-2011
Users who have never changed their password from /etc/shadow.
Hello,

I have to do a script which returns users who have never changed their password from /etc/shadow.
Here is what have I done and I'm not sure if it's ok.
I tried to return just users who doesn;t have password set or are locked.
Can be there other kind of user who never changed the password?

Code:
#!/bin/sh -x
USRFILE="/etc/shadow"

for i in `grep -v '^+' $USRFILE | cut -d: -f1,2`
do
  userpname=`echo $i|cut -d: -f1`
  password=`echo $i|cut -d: -f2`
  if [ "x$password" -eq "x*LK*" ] || [ "x$passwd" -eq "xNP" ]
  then
    if [ "$RESULT" = "PASS" ]
      then
        RESULT="FAIL"
        REASON="Users who have changed their password were found"
      fi
      echo "$userpname user in “/etc/shadow” without changed password." 
  fi
done


thanks and regards,
catalint
Last edited by pludi; 05-12-2011 at 05:36 AM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

remove shadow password

Does anyone know how to remove a stanza in the shadow password file if the user account has already been removed on an AIX box? I know it can be done by editing the file itself but I would prefer not to do it that way. cheers gizaa (2 Replies)
Discussion started by: gizaa
2 Replies

2. Shell Programming and Scripting

I want to append password in /etc/shadow file

Hi, I want to append password into /etc/shadow file using a shell script. My below script does add the users to both /etc/passwd and /etc/shadow but how can I add the hordcoded passwords to /etc/shadow file can some one help me ? # To add the groups into /etc/group file for a_user... (5 Replies)
Discussion started by: modgil
5 Replies

3. UNIX for Dummies Questions & Answers

Have users changed their password

How can I know users have changed their passwords ? I don't need their password (!) I have to know if they have changed their pass word and when ? Thank you in advance for any SIMPLE answer. (6 Replies)
Discussion started by: annemar
6 Replies

4. UNIX for Dummies Questions & Answers

shadow file after a password reset

hi, I had to reset a lost root password by editing the /etc/passwd and /etc/shadow files ( this is a xen vm file, so i mounted and chrooted the file ) after the reboot with an empty password on root , i have set a new password with passwd but it only changed the /etc/passwd file.... (0 Replies)
Discussion started by: progressdll
0 Replies

5. Linux

Interpreting the encrypted shadow password?

We are currently using a script to copy the same encrypted password between our HP-UX and Solaris servers editing the trusted and shadow files directly. The encrypted password is only 13 characters long on both servers and decrypts the same way. Is there a way to copy this same string to Linux... (5 Replies)
Discussion started by: keelba
5 Replies

6. Solaris

hash password in shadow show 'x' ???

Hello, I want to know the reason behing the scene why some systems have hashed password in /etc/shadow file as "x" not the alienoid language like A1Dksxi3kaA.. (13 characters) As far as I understand, etc/password will show password as "x" and move all hashed password to etc/shadow.... (8 Replies)
Discussion started by: Smith
8 Replies

7. Solaris

Password Recovery From /etc/shadow file

Is it possible to reset a normal user password , by editing password field in /etc/shadow file? Thanks (6 Replies)
Discussion started by: ksvaisakh
6 Replies

8. UNIX for Advanced & Expert Users

/etc/shadow encrypted password

Hi I wonder whether is possible to generate enrypted passwd for some user and paste it into /etc/shadow file ? What kind of encryption is used in /etc/shadow file ? ths for help. (1 Reply)
Discussion started by: presul
1 Replies

9. Red Hat

Shadow file password policy

Today i was going through some of security guides written on linux . Under shadow file security following points were mentioned. 1)The encrypted password stored under /etc/shadow file should have more than 14-25 characters. 2)Usernames in shadow file must satisfy to all the same rules as... (14 Replies)
Discussion started by: pinga123
14 Replies

10. UNIX for Dummies Questions & Answers

Using the encrypted password of the shadow file

i have an application that uses the encrypted password that's in the /etc/shadow file. i copied the line for the particular username i was interested it in from shadow file and i pasted it into the password file of the application. the application is nagios. this application allowed that... (5 Replies)
Discussion started by: SkySmart
5 Replies

LEARN ABOUT SUNOS

pwconv

pwconv(1M)						  System Administration Commands						pwconv(1M)

NAME

       pwconv - installs and updates /etc/shadow with information from /etc/passwd

SYNOPSIS

       pwconv

DESCRIPTION

       The pwconv command creates and updates /etc/shadow with information from /etc/passwd.

       pwconv relies on a special value of 'x' in the password field of /etc/passwd. This value of 'x' indicates that the password for the user is
       already in /etc/shadow and should not be modified.

       If the /etc/shadow file does not exist, this command will create /etc/shadow with  information  from  /etc/passwd.  The	command  populates
       /etc/shadow  with  the  user's  login  name,  password,	and  password  aging  information. If password aging information does not exist in
       /etc/passwd for a given user, none will be added to  /etc/shadow. However, the last changed information will always be updated.

       If the  /etc/shadow file does exist, the following tasks will be performed:

		Entries that are in the  /etc/passwd file and not in the /etc/shadow file will be added to the /etc/shadow file.

		Entries that are in the  /etc/shadow file and not in the /etc/passwd file will be removed from /etc/shadow.

		Password attributes (for example, password and aging information)  that exist in an /etc/passwd entry will be moved to the  corre-
		sponding entry in  /etc/shadow.

       The pwconv command can only be used by the super-user.

FILES

       /etc/opasswd

       /etc/oshadow

       /etc/passwd

       /etc/shadow

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       passwd(1), passmgmt(1M), usermod(1M), passwd(4), attributes(5)

DIAGNOSTICS

       pwconv exits with one of the following values:

       0	SUCCESS.

       1	Permission denied.

       2	Invalid command syntax.

       3	Unexpected failure.  Conversion not done.

       4	Unexpected failure.  Password file(s) missing.

       5	Password file(s) busy.	Try again later.

       6	Bad entry in /etc/shadow file.

SunOS 5.10							    9 Mar 1993								pwconv(1M)
All times are GMT -4. The time now is 10:55 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy