Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

vipw(8) [osx man page]

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

NAME
vipw -- edit the password file SYNOPSIS
vipw 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. ENVIRONMENT
If the following environment variable exists it will be utilized by vipw: EDITOR The editor specified by the string EDITOR will be invoked instead of the default editor vi(1). SEE ALSO
chpass(1), passwd(1), passwd(5), pwd_mkdb(8) HISTORY
The vipw command appeared in 4.0BSD. 4th Berkeley Distribution June 6, 1993 4th Berkeley Distribution

Check Out this Related Man Page

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

NAME
vipw -- edit the password file SYNOPSIS
vipw [-d directory] DESCRIPTION
The vipw utility 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). When run without options, vipw will work with the password files in /etc. The -d option may be used to specify an alternative directory to work with. The vipw utility 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. ENVIRONMENT
If the following environment variable exists it will be utilized by vipw: EDITOR The editor specified by the string EDITOR will be invoked instead of the default editor vi(1). This can be used to allow a script to non-interactively modify the password file. PW_SCAN_BIG_IDS See pwd_mkdb(8). SEE ALSO
chpass(1), passwd(1), passwd(5), adduser(8), pw(8), pwd_mkdb(8) HISTORY
The vipw utility appeared in 4.0BSD. BUGS
The mechanism for checking for password file modifications requires that the modification time of the password file changes. This means that in a default configuration where file system timestamps are not calculated with sub-second precision, EDITOR has to run for at least one sec- ond. Non-interactive editor scripts should invoke sleep(1) or equivalent to ensure this happens. BSD
February 14, 2012 BSD

15 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Help in setting up password without Interaction.

Can anybody tell me how can I create an account without having to enter the password after editing the vipw file. I mean the system should automatically take care of the password encryption in the shadow file and I don't to enter the password again and the Account should be ready to go. ... (3 Replies)
Discussion started by: syedifti
3 Replies

2. UNIX for Dummies Questions & Answers

Changing default editor

Redhat 9 I want to change my default text editor from vi to pico. When I look in the .bash_profile or .bashrc I do not see the EDITOR variable. So how do I change the default permanently? (1 Reply)
Discussion started by: Tony Empire
1 Replies

3. UNIX for Dummies Questions & Answers

redirecting password as username for rlogin

Is the following even possible ? by echo $3, I mean enter password when prompted for it. My main issue is that it would deal with a prompted password, which is passed from the command line like this: ./processing serverA user password I cannot not use expect here, I heard that was very... (1 Reply)
Discussion started by: seaten
1 Replies

4. UNIX for Dummies Questions & Answers

Forgotpassword

I my Pc the vendor installed linux and windowsXp in my pc now i have forgot my Root password itself. will anyone please Help me break password or how can i enter into Linux. I welcowe all for valuable suggestions thanks gvvr (1 Reply)
Discussion started by: G.Vishnuvardhan
1 Replies

5. UNIX for Dummies Questions & Answers

How to echo password characters

Hi All, I was wondering, how can I echo password using a character such as '*' in unix? In my machine, password is not echoed, so it is only blank space when I enter any password. So, when I enter a command such as "lock", how can I set the echo character to "*" or something else for... (4 Replies)
Discussion started by: mukluk
4 Replies

6. Shell Programming and Scripting

Want to hide password

All, In my script I am calling another script.. in that script I need to enter a password. Problem is that everyone is able to see the password when I enter that. Is there any way that when i enter that password it should not display or may look like *******. Or if there any other way that I... (1 Reply)
Discussion started by: arpitk
1 Replies

7. AIX

edit env. setting

hi eveybody, i m trying to set acl using acledit command in AIX box but wat im gettung is 3002-100 acledit: EDITOR environment variable not set can anyone help me out how 2 set editor.................... thanks in advance (4 Replies)
Discussion started by: rrlog
4 Replies

8. Linux

file editing

I have created a file with vi -x (file name) this is encrypted file when i again open this file it ask me to enter a password before editing it.Can i remove this password but i don't want to delete a file how to do this. Thanks (0 Replies)
Discussion started by: ambavaram
0 Replies

9. Linux

how to use expect command?

Hello, I am doing a project which asks me to enter password 4 times in a row. I need to enter the same password 4 times. My target is to enter password once and apply it 4 times. My friend told me to use "expect" command. Can you please give me a sample code to do so. sample command :- $ ssh... (1 Reply)
Discussion started by: nsharath
1 Replies

10. HP-UX

command su : enter directly

Hi, a simple question : How can I sent user and password to the command su. I need this for a script, but the problem is the command su wait for the password. Thanks. (2 Replies)
Discussion started by: mvaquerm
2 Replies

11. Solaris

make "strong" password

Hi I`m newble here. How I can make "strong" password by dafault? Variable in /etc/default/passwd set PASSLENGTH=6 I need to make setting password min passlength 8 and include sumbols !@#$%^&*() , digits, ets... Plz, help me where I must change setting? P.S. Sorry for my english. (4 Replies)
Discussion started by: xmoonlight
4 Replies

12. Shell Programming and Scripting

How to enter a password in the script automatically when prompted?

Hi Friends, We need to create a script which will invoke a command with diffrent parameters. The command invoked needs the password. So how automatically we can enter password in the script to the command? example.: #!/bin/ksh for par in `cat parfile` do # Here is the main command... (1 Reply)
Discussion started by: sourabhsharma
1 Replies

13. Emergency UNIX and Linux Support

Bash answer prompt

I am working with a script to simplyfy some operations where I work, but one of the programs needs me to enter a password. It will as me "Please enter the administrator password:" Is there a way to make a bash script to automatically answer the question with the needed password? I am looking... (3 Replies)
Discussion started by: noratx
3 Replies

14. Solaris

cant set password for user

hi everybody i cant set password for user (jam) i tried to #passwd jam enter newpasswd : after enter it showing passwd : cannot get default domain:internal yp server or client error i also check cat /etc/shadow file jam:*:LK*:........ user is locked ... and i... (4 Replies)
Discussion started by: coolboys
4 Replies

15. Solaris

Problems setting password.

Hi All, I have a problem setting the password when I have to create a user and password as detailed below. username : gaacj01 password : oshopp01 username : gaacj02 password : oshopp02 username : gaacj03 password : oshopp03 username : gaacj04 password : oshopp04 username : gaacj05 ... (17 Replies)
Discussion started by: kittigolf
17 Replies

Featured Tech Videos