Finding the group to which a user belongs Post: 95260

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1. Shell Programming and Scripting

How to check if a user belongs to a group (KSH)?

Hi all, How can I check if a particular user id belongs to a group? (ie. how to check if the current user `whoami` is part of the a certain group? do i use the group name of group id?) Thanks in advance

2. 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...

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While doing a "little" clean up job, i noticed something weird... A ls -altr of my / showed this: drwxr-xr-x 1549 johcham grands 102400 Jan 28 13:13 home How can a user become the owner / modify the group of my /home??? any thoughts? Can i chown this back to bin:bin (i think that...

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Finding the Group Owner Name

Hi all, How can i find the group owner name...??? Thanks

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How would I find out who the group openers is of a file? For example: > ls -l myfile -rwxr-xr-x 1 myronp hawks 20125 Oct 20 20:50 myfile How do I return just hawks. I could do this with a series of cut or awk, but is there a more direct way. The ls -g is better, but still...

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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...

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Finding if my IP address belongs in a Class C group

I need help with a tcl code. I have a variable "myIP" which reads IP address from socket. How do I use regex to find out if it belongs to a group for e.g., 50.65.75.240/28 or 50.65.75.128/25 etc.

LEARN ABOUT NETBSD

newgrp

NEWGRP(1)						    BSD General Commands Manual 						 NEWGRP(1)

NAME

     newgrp -- change to a new primary group

SYNOPSIS

     newgrp [-l] [group]

DESCRIPTION

     The newgrp command changes a user to a new primary group (real and effective group ID) by starting a new shell.  The user remains logged in
     and the current directory and file creation mask remain unchanged.  The user is always given a new shell even if the primary group change
     fails.

     The newgrp command accepts the following options:

     -l      The environment is changed to what would be expected if the user actually logged in again.  This simulates a full login.

     The group is a group name or non-negative numeric group ID from the group database.  The real and effective group IDs are set to group or the
     group ID associated with the group name.

     If group is not specified, newgrp restores the user's real and effective group IDs to the user's primary group specified in the password
     database.	The user's supplementary group IDs are restored to the set specified for the user in the group database.

     If the user is not a member of the specified group, and the group requires a password, the user will be prompted for the group password.

FILES

     /etc/group 	 The group database
     /etc/master.passwd  The user database
     /etc/passwd	 A Version 7 format password file

EXIT STATUS

     If a new shell is started the exit status is the exit status of the shell.  Otherwise the exit status will be >0.

SEE ALSO

     csh(1), groups(1), login(1), sh(1), su(1), umask(2), group(5), passwd(5), environ(7)

STANDARDS

     The newgrp command conforms to IEEE Std 1003.1-2001 (``POSIX.1'').

HISTORY

     A newgrp command appeared in Version 6 AT&T UNIX.	A newgrp command appeared in NetBSD 5.0.

BUGS

     There is no convenient way to enter a password into /etc/group.  The use of group passwords is strongly discouraged since they are inherently
     insecure.	It is not possible to stop users from obtaining the encrypted password from the group database.

BSD
								   June 6, 2007 							       BSD

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to check if a user belongs to a group (KSH)?

Discussion started by: rockysfr

2. Shell Programming and Scripting

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

Discussion started by: shunter63

3. AIX

/home belongs to a user?

Discussion started by: Stephan

4. AIX

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

Discussion started by: anoopraok