Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: is it possible to have a 1000 user in single group
Top Forums UNIX for Advanced & Expert Users is it possible to have a 1000 user in single group Post 302257889 by Perderabo on Thursday 13th of November 2008 09:34:46 AM
Old 11-13-2008
Quote:
Originally Posted by methyl
There is no limit on the number of users in a primary group. The limit of LINE_MAX applies to each secondary group. It is not necessary or advisible to list any users primary group in /etc/group .
Though not tried on Red Hat, I have seen multiple lines for the same group in /etc/group in a very large unix SVR4 system.
I have seen the same thing:
realgrp::123:user1,user2
dummy1::123:user3,user4
dummy2::123:user5,user6

All six users are in group 123. And when group 123 is translated, it comes out as "realgrp".
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Find all files with group read OR group write OR user write permission

I need to find all the files that have group Read or Write permission or files that have user write permission. This is what I have so far: find . -exec ls -l {} \; | awk '/-...rw..w./ {print $1 " " $3 " " $4 " " $9}' It shows me all files where group read = true, group write = true... (5 Replies)
Discussion started by: shunter63
5 Replies

2. UNIX for Dummies Questions & Answers

single user mode - user accounts passwords

hello ppl, someone must be able to help with this --> I have an old NCR tower 32 with an ADDS terminal running a unix version 020102 (Im not sure if thats correct but its unix for sure). I have no user names and no passwords and need to login to read a tape. Is there any way to do that? I hear... (3 Replies)
Discussion started by: orestis
3 Replies

3. UNIX for Dummies Questions & Answers

How many user can be added to single group

Hi There, How many user can be added to a unix single group. I need this for unix and solaris. BRs -----Post Update----- I'm asking about secondary group and not primary group. All the users are having 8 character as their username. value is set for getconf LINE_MAX is... (1 Reply)
Discussion started by: maestromani
1 Replies

4. UNIX for Dummies Questions & Answers

Restoring a single file from a group of files using tar

Hello I take a backup using the following command on Solaris 9 tar cvf /dev/rmt/0n data the data volume contains a number of files say a, b, c , d ... etc Now I want to restore only one file (eg b) from the data volume. When I issue the command tar xvf /dev/rmt/0n data/b... (1 Reply)
Discussion started by: rahmantanko
1 Replies

5. UNIX for Advanced & Expert Users

Merge a group of lines into single line

Hi Everybody, Below are the contents of the a text file .., SN = 8 MSI = 405027002277133 IKVALUE = DE6AA6A11D42B69DF6398D44B17BC6F2 K4SNO = 2 CARDTYPE = SIM ALG = COMP128_3 SN = 8 MSI = 405027002546734 IKVALUE = 1D9F8BAA73973D8FBF8CBFB01436D822 K4SNO = 2 CARDTYPE = SIM ALG =... (8 Replies)
Discussion started by: prasanth_babu
8 Replies

6. Ubuntu

Create New User with the same group nd privileges of the other user

Hi, Anyone can help me on how to duplicate privileges and group for useroradb01 to userrootdb01. I have currently using "useroradb01" and create a newly user "userrootdb01". I want both in the sames privileges and group. Please see the existing users list below; drwxr-xr-x 53 useroradb01... (0 Replies)
Discussion started by: fspalero
0 Replies

7. Red Hat

User is a Part of a Group But Group Details Do Not Show the User

Hi, In the following output you can see the the user "richard" is a member on the team/group "developers": # id richard uid=10247(richard) gid=100361(developers) groups=100361(developers),10053(testers) but in the following details of the said group (developers), the said user... (3 Replies)
Discussion started by: indiansoil
3 Replies

8. UNIX for Dummies Questions & Answers

Split files into smaller ones with 1000 hierarchies in a single file.

input file: AD,00,--,---,---,---,---,---,---,--,--,--- AM,000,---,---,---,---,---,--- AR, ,---,--,---,--- AA,---,---,---,--- AT,--- AU,---,---,--- AS,---,--- AP,---,---,--- AI,--- AD,00,---,---,---, ,---,---,---,---,---,--- AM,000,---,---,--- AR,... (6 Replies)
Discussion started by: kcdg859
6 Replies

9. Programming

Sql ORA-00937: not a single-group group function

I'm trying to return only one row with the highest value for PCT_MAX_USED. Any suggestions? When I add this code, I get the ORA-00937 error. trunc(max(decode( kbytes_max, 0, 0, (kbytes_alloc/kbytes_max)*100))) pct_max_used This is the original and returns all rows. select (select... (3 Replies)
Discussion started by: progkcp
3 Replies

10. Shell Programming and Scripting

Group Multiple Lines on SINGLE line matching pattern

Hi Guys, I am trying to format my csv file. When I spool the file using sqlplus the single row output is wrapped on three lines. Somehow I managed to format that file and finally i am trying to make the multiple line on single line. The below command is working fine but I need to pass the... (3 Replies)
Discussion started by: RJSKR28
3 Replies

LEARN ABOUT PHP

newgrp

NEWGRP(1)                                                          User Commands                                                         NEWGRP(1)

NAME

       newgrp - log in to a new group

SYNOPSIS

       newgrp [-] [group]

DESCRIPTION

       The newgrp command is used to change the current group ID during a login session. If the optional - flag is given, the user's environment
       will be reinitialized as though the user had logged in, otherwise the current environment, including current working directory, remains
       unchanged.

       newgrp changes the current real group ID to the named group, or to the default group listed in /etc/passwd if no group name is given.
       newgrp also tries to add the group to the user groupset. If not root, the user will be prompted for a password if she does not have a
       password (in /etc/shadow if this user has an entry in the shadowed password file, or in /etc/passwd otherwise) and the group does, or if
       the user is not listed as a member and the group has a password. The user will be denied access if the group password is empty and the user
       is not listed as a member.

       If there is an entry for this group in /etc/gshadow, then the list of members and the password of this group will be taken from this file,
       otherwise, the entry in /etc/group is considered.

CONFIGURATION

       The following configuration variables in /etc/login.defs change the behavior of this tool:

       SYSLOG_SG_ENAB (boolean)
           Enable "syslog" logging of sg activity.

FILES

       /etc/passwd
           User account information.

       /etc/shadow
           Secure user account information.

       /etc/group
           Group account information.

       /etc/gshadow
           Secure group account information.

SEE ALSO

       id(1), login(1), su(1), sg(1), gpasswd(1), group(5), gshadow(5).

shadow-utils 4.5                                                    01/25/2018                                                           NEWGRP(1)
All times are GMT -4. The time now is 01:54 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy