Script to list primary group of users Post: 302461778

Sponsored Content

Top Forums Shell Programming and Scripting Script to list primary group of users Post 302461778 by bakunin on Tuesday 12th of October 2010 07:57:57 AM

10-12-2010

Registered User

First off, there are several syntactical problems in your script:

Code:

\rm ${fic_ListGRP_tmp.log}
\rm ${fic_ListUSR_tmp.log}

I don't know what this is supposed to do, but most probably it won't do it, whatever "it" is.

Second, i don't know which system you are working on. If it is some Linux or Linuxoid system you can simply get all the primary groups of all the users by reading field 4 in the file /etc/passwd. If you need the groups name just refer to /etc/group for a name-GID relation. See the code-snippet below:

Code:

cat /etc/passwd |\
cut -d':' -f1,4 |\
while read chUser chPGID ; do
     chPGIDName="$(grep ":${chPGID}:" /etc/group | cut -d':' -f1)"
     print - "User: $chUser \t Prim. Group: $chPGID \t Groups Name: $chPGIDName"
done

The reason why your code might have failed is not clear. One possibility is that you counted users more than one times: suppose user ONE has groups A, B, C, D, user B has groups "A, C, D". Per your algorithm you would find user account B three times and count it for three distinct users. To avoid this you will have to make your list with users unique by filtering out all the doubles, probably by filtering the fnal list through "sort -u" or something such.

I hope this helps.

bakunin

This User Gave Thanks to bakunin For This Post:

bakunin

View Public Profile for bakunin

Find all posts by bakunin

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to find All Primary and Secondary Group ID's for a user

Is there any command which can list me all the Group ID's (Primary, Secondary ) assocaited with a single user. Thanks Sanjay

2. UNIX for Dummies Questions & Answers

command help, how do i list the users of a group?

What command allows you to display a list of the userids of all the other users in a group, regardless if they are logged in or not?

3. Solaris

How do you list users in a solaris group

I need to list all users in a group. This is a large unix site running nis+.

4. UNIX for Advanced & Expert Users

Change a users primary group after login

When users login, they are directed to menu (aix script). The menu enables the user to choose an environment to work in. Each environment has a different group id. When a user chooses a menu option, I want to change his primary group to that specific environment's group id. Is this at all possible...

5. Shell Programming and Scripting

List ALL users in a Unix Group (Primary and Secondary)

Is there a command or better combination of cmds that will give me the list of Unix users in a particular Unix group whether their primary group is that group in question (information stored in /etc/passwd) or they are in a secondary group (information stored in /etc/group). So far all I got...

6. AIX

script for finding all the users with GID 0 ( admin group )

Hi Friends, I am trying to write a script for finding all the users with the GID 0 i.e. Admin users. can you please help me on this.

7. Ubuntu

primary group for user

HI I need to know what is the primary group name of a particular user. How to do this ? Maybe with groups cmd ? (first group name in line, is the primary group) thx for help.

8. Shell Programming and Scripting

Script to add new users to a group on multiple servers using SSH

Hi Experts, I am new to scripting. We have around 400 Linux servers in our environment. I want to add a new user to a perticular group on all the servers using SSH. Requirements: 1) Need to take the server names from a text file. 2) Login into each server and check whether perticular...

9. UNIX for Beginners Questions & Answers

Primary group

Is it possible user without a primary group

10. HP-UX

Creating a group of users with script

Hi, I have a file with usernames, and the comment section, e.g : Data removed by request of sanchitadutta91, 20 May 2020 I need to add these users into a server. Is it possible to use a script to create the users, together with the comment ? From the commandline to add one user, the...

LEARN ABOUT HPUX

listusers

listusers(1)						      General Commands Manual						      listusers(1)

NAME

       listusers - display user login data

SYNOPSIS

       groups] logins]

DESCRIPTION

       The  command  displays  data  concerning user logins.  The output shows the user login and the comment field value (for example, user name,
       location).  The default displays data about all user logins.

   Options
       The command supports the following options:

	      Display only users who have
			     groups, as their primary group. Use with the option.

	      Display only users who have
			     groups, as their supplementary group.  Use with the option.

	      Display all users belonging to
			     groups, sorted by login.  A comma separated list specifies multiple groups.

	      Display the requested
			     logins.  A comma separated list specifies multiple logins.

	      Display only users belonging to the specified repository,
			     either for NIS or users.

       A user login has a UID of 100 or greater.

       When the and options are combined, a user login is only displayed once, even though the login may belong to multiple specified groups.

EXAMPLES

       List all user logins.

       List all user logins in the group and the users removing all duplicates.

       List all users who have as their primary group.

       List all users who have as their supplementary group.

       List only local user logins.

       List only NIS user logins.

FILES

SEE ALSO

       passwd(1), logins(1M), group(4), passwd(4).

STANDARDS CONFORMANCE

																      listusers(1)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to find All Primary and Secondary Group ID's for a user

Discussion started by: sanjay92

2. UNIX for Dummies Questions & Answers

command help, how do i list the users of a group?

Discussion started by: crabtruck

3. Solaris

How do you list users in a solaris group

Discussion started by: gillbates

4. UNIX for Advanced & Expert Users

Change a users primary group after login

Discussion started by: terrym