Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #506
Difficulty: Easy
A flowchart is a visual representation of an algorithm or process consisting of boxes or 'nodes' connected by directed edges.
True or False?
Linux & Unix Commands - Search Man Pages

vipw(8) [osf1 man page]

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

vipw - Edits the /etc/passwd file SYNOPSIS
/usr/sbin/vipw DESCRIPTION
You use the vipw command to edit the /etc/passwd file with the editor defined in the EDITOR environment variable. If the variable is not set, the default editor is vi. The vipw command performs basic consistency checks on the edited file. If a hashed indexed passwd existed previously, the vipw command uses the mkpasswd command to create recreate it. The command must not be used on systems that use extended security attributes since it cannot set or change them. You must be root to run this command. Only root and security administrators should have execute access to this command. Since the vipw command cannot effectively change all the attributes of users, it should not be used in a secure environment. The vipw command accesses the following files, and requires the listed permissions: ------------------------------ Permissions File ------------------------------ rw /etc/passwd rw /etc/passwd.pag rw /etc/passwd.dir rw /etc/ptmp rw /etc/ptmp.pag rw /etc/ptmp.dir ------------------------------ EXAMPLE
To edit the /etc/passwd file, type the following command and add the required line entry: vipw FILES
Specifies the command path RELATED INFORMATION
Commands: passwd(1), passwd(4), adduser(8), mkpasswd(8) delim off vipw(8)

Check Out this Related Man Page

VIPW(8) 						    BSD System Manager's Manual 						   VIPW(8)

vipw -- edit the password file SYNOPSIS
vipw [-d directory] DESCRIPTION
vipw edits the password file after setting the appropriate locks, and does any necessary processing after the password file is unlocked. If the password file is already locked for editing by another user, vipw will ask you to try again later. The default editor for vipw is vi(1). vipw performs a number of consistency checks on the password entries, and will not allow a password file with a ``mangled'' entry to be installed. If vipw rejects the new password file, the user is prompted to re-enter the edit session. Once the information has been verified, vipw uses pwd_mkdb(8) to update the user database. This is run in the background, and, at very large sites could take several minutes. Until this update is completed, the password file is unavailable for other updates and the new information is not available to programs. The options are as follows: -d directory Change the root directory of the password file from ``/'' to directory. If a vipw session is killed it may leave ``/etc/ptmp'', which will cause future vipw executions to fail with ``vipw: the passwd file is busy'', until it is removed. ENVIRONMENT
If the following environment variable exists it will be used by vipw: EDITOR The editor specified by the string EDITOR will be invoked instead of the default editor vi(1). FILES
/etc/master.passwd The current password file. /etc/ptmp Temporary copy of the password file used while editing. SEE ALSO
chpass(1), passwd(1), pwhash(1), passwd(5), passwd.conf(5), pwd_mkdb(8), user(8) HISTORY
The vipw command appeared in 4.0BSD. BSD
September 4, 2005 BSD

15 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

MOTD File?

Anyone know how to change the location of the MOTD file from the default /etc/motd? An annoying person with root access has found out how to edit the file and change my MOTDs. Help me. (14 Replies)
Discussion started by: Rex00me
14 Replies

2. HP-UX

passwd file corrupted

Good Day Our HP box was hacked and the passwd file has been altered,there are only 2 user accounts active,and these dont have any administrative rights.I need to edit the passwd file to correct the su and root entries. Does any body have any suggestions as to how i can do this with out the root... (10 Replies)
Discussion started by: cantona7
10 Replies

3. AIX

Boot in Single-Mode

Hi All, I have AIX 5.1 & I forgot the root password. I find out the solution is to boot in single-mode and remove the root password from the /etc/passwd file. My question is how to boot in single-mode? Also is there any password required when booting in this mode? (9 Replies)
Discussion started by: aldowsary
9 Replies

4. UNIX for Dummies Questions & Answers

hw to reterive root passwd

heyy i forgot my root passwd but i cant reinstall due to some reason can anyone tell me hw to reterive root passwd (10 Replies)
Discussion started by: mightypp.nits
10 Replies

5. Red Hat

forgot root passwd

hi i have a RHEL 4 and have forgot root passwd tried to boot in by singel user and then changing the passwd but it's not letting me do that ......throwing some weird error as .......manipulation i also tried to make a new user from CLI but even though it's not letting me in from that user as... (12 Replies)
Discussion started by: techbravo
12 Replies

6. HP-UX

Openspool problem when changing /etc/passwd permissions

My goal is to protect the /etc/passwd from unauthorized viewing. I wish ti change the permissions of the file to : -r--r----- 1 root bin so only root or accounts of the "bin" group could query this sensitive file. All our other processes have been ajusted to not need any info from... (16 Replies)
Discussion started by: MartinGravel
16 Replies

7. Solaris

Reg. /etc/passwd file

Hi friends, i need a favour from u all i made a small change in home pc it is INTEL i had change /etc/passwd i just change the shell for the root instead of sh i kept bash and i had taken back up of the file /etc/passwd. now the problem is i am not able to log in as a root i got a error NO Shell... (10 Replies)
Discussion started by: kurva
10 Replies

8. Shell Programming and Scripting

need script for passwd , can't use expect tool

(35 Replies)
Discussion started by: Nicol
35 Replies

9. UNIX for Dummies Questions & Answers

command to check consistancy of /etc/passwd

Please let me know the command to check consistance of /etc/passwd :confused: (6 Replies)
Discussion started by: RajendraKumar
6 Replies

10. Emergency UNIX and Linux Support

Passwd command problem

on Runnning passwd command on HPUX 11.23 I am getting pam_chauthtok: Shared object load failure. Pls help ... (13 Replies)
Discussion started by: ultimatix
13 Replies

11. UNIX for Dummies Questions & Answers

passwd - useradd issues

hi guys I'm having these problems with these commands and I have not idea why # passwd If 'passwd' is not a typo you can run the following command to lookup the package that contains the binary: command-not-found passwd -bash: passwd: command not found # useradd temp Warning:... (15 Replies)
Discussion started by: karlochacon
15 Replies

12. UNIX for Dummies Questions & Answers

etc/passwd help

Hi! i've been searching a way to display the users who are in the /etc/passwd directory...using ls or grep or cat command should do it?i can't find a way to get this right..i mean none of the preview commands function sounded good to me to use... (9 Replies)
Discussion started by: strawhatluffy
9 Replies

13. Solaris

Removing blank spaces

Hi , I want to go out of vi editor temporarily and execute a command in command prompt and again going back to the editor . Is it possible . Any help on this is really helpful. 1. Need to open vi 2. Temporarily come out and execute a command and go back to vi editor (6 Replies)
Discussion started by: rogerben
6 Replies

14. UNIX for Dummies Questions & Answers

Rm command

(14 Replies)
Discussion started by: Andrshdz
14 Replies

15. UNIX for Beginners Questions & Answers

Command to change add permissions for a new user to all files in all subfolders and folders

Hi there! I'm new to Unix and haven't done command line stuff since MS-Dos and Turbo Pascal (hah!), I would love some help figuring out this basic command (what I assume is basic). I'd like to add a User to the permissions of all files in a folder and all files in all subfolders, as well... (9 Replies)
Discussion started by: Janjbrt
9 Replies

Featured Tech Videos