groups(1) User Commands groups(1)NAME
groups - print group membership of user
SYNOPSIS
groups [user]...
DESCRIPTION
The command groups prints on standard output the groups to which you or the optionally specified user belong. Each user belongs to a group
specified in /etc/passwd and possibly to other groups as specified in /etc/group. Note that /etc/passwd specifies the numerical ID (gid)
of the group. The groups command converts gid to the group name in the output.
EXAMPLES
The output takes the following form:
example% groups tester01 tester02
tester01 : staff
tester02 : staff
example%
FILES
/etc/passwd
/etc/group
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO group(4), passwd(4), attributes(5)SunOS 5.11 14 Sep 1992 groups(1)
Check Out this Related Man Page
group(4) Kernel Interfaces Manual group(4)NAME
group - Group file
DESCRIPTION
The /etc/group database contains the following information for each group: Group name Encrypted password Numerical group ID A comma-sepa-
rated list of all users allowed in the group
Note: Do not put any spaces between a comma and a username; otherwise, the username following the comma will not be made a part of the
desired group.
The /etc/group file is an ASCII file, with the fields separated by colons. Each group is separated from the next by a new line. If the
password field is null, no password is demanded.
Because of the encrypted passwords, it can and does have general read permission and can be used, for example, to map numerical group IDs
to names.
Note that commands or scripts used for adding users to groups are subject to the 225 character limit on line lengths. However, you can
split lines as appropriate.
RESTRICTIONS
Increasing the number of groups that a user is in beyond 16 can affect services that use ONC RPC. Tru64 UNIX ONC RPC supports up to 32
groups for compatibility with ULTRIX Version 4.2 and higher. Other vendors may support only 16 groups. ULTRIX versions before 4.2 support
up to 8 groups. Users who increase their group membership beyond 8 or 16 groups will not be able to NFS mount file systems from servers
that only support 8 or 16 groups over NFS. In addition, if root group membership is increased beyond 8 or 16, the NIS service will not work
in a mixed NIS server environment where the servers support only 8 or 16 groups. The addgroup command limits the length of a group name to
eight characters or less.
FILES
/etc/group
RELATED INFORMATION
Commands: addgroup(8), groupadd(8), adduser(8), groups(1), passwd(1)
Functions: setgroups(2)
Routines: initgroups(3)
Files: passwd(4)
delim off
group(4)
I have a script that puts out a list that looks like this:
bb1 newyork
bb1 pittsburg
bb2 seattle
bb2 spokane
sl1 sacramento
I want to seperate the output so that it instead has a space between each group so like this:
bb1 newyork
bb1 pittsburg
bb2 seattle
bb2 spokane
sl1... (8 Replies)
My users and groups have gotten out of control on a lot of my servers. Is their some tool out there that can give me a report on;
1. users
2. what groups they are assigned to
3. comment field
4. last login
Something that can pull all this into a nice graphical page for the bosses to look... (7 Replies)
Hello gurus,
I've been working on a sudoers file to work with groups in LDAP. I've created the groups in LDAP and added the users to there respective groups. I've also setup my sudoers file to have the groups match what is in LDAP. And I've added ldap to nsswitch.conf in the group line. The... (6 Replies)
How do I remove a user from a group? I'm using the usermod command but its not working.
I have a user "abc" who is a member of the groups root and other. I'm trying to remove him from the group "other" (using CLI) which is his secondary group but it's not working.
How do I do this? Is there any... (11 Replies)
Experts,
I know when I use id it shows only the primary group information for the given user, and that info comes from passwd file. When I use groups it shows all groups user are member of, however from where come information given by groups command?
grep fmtt3990 /etc/passwd... (6 Replies)
ISBN 10:
it has 4 groups separated with ' ' or '-'
1. group need to has 1-5 digits
2. group need to has max 7
3. max 6
4. 1 digit or letter 'X'
ISBN 13
5 groups separated with ' ' or '-'
1. group - always has 3 digits
2. group same as 1st in isbn10
3. group same as 2nd in isbn10
4.... (6 Replies)
(Solved)I have a test id: testuser, when I create it pgrp=testgrp groups=testgrp, staff, I check it by lsuser testuser later, it shows pgrp=testgrp, groups=testgrp, no staff in groups, how to add staff in groups? (6 Replies)
I'm looking to parse the output of the id command.
uid=205(oracle) gid=203(dba) groups=4(adm),207(oinstall),202(ndm),206(eis)
Is there an easy way I can get the user name (in this case "oracle) using a sed or awk command. The username will always be inside the parenthsis
and proceeded... (7 Replies)
I have an input file that contains the primary and secondary groups a user should have based on a pre-defined role. The input file looks like this:
<user_login>|<comment_field>|<role>
After I execute my script to do some grepping I have the following user file where the secondary groups are... (10 Replies)
Hi
Could anyone please suggest how we can check in Linux if a user or a group name is already existing? In case of a user the command should also be able to specify the user with a given directory and shell. We can of course check this using a grep command but since that is just a pattern match,... (12 Replies)
Hi All,
I have to do one simple script in AWK. I must to show all users in the group and the group name is called from the keyboard.
I know that I can get groups etc. from /etc/group file.
#!/bin/bash
echo "Group name: "
read name
awk '{split($0,array,":")} {if(array ==... (6 Replies)
I am having trouble with regex capturing groups, For Ex :
I am having a file with
ABC CDLF SFSDFK PRIMARY INDEX(XYZ,DEF,GHI);
XYZ FLJ SDFKLD; PRIMARY INDEX(ABC);
BHI SDKFLFLSFD PRIMARY INDEX (QWE , RTY , LHJ);
My output should be :
ABC XYZ,DEF,GHI
XYZ ABC
BHI ... (10 Replies)
Please consider the following file, I have many groups which can be of 3 types, T1 (Serial_Number 1) T2 (Serial_Number 2) and T1*T2 (all other Serial_Number).
I want to only consider groups that have both T1 and T2 present and their values are different from each other. In the example file,... (8 Replies)
OS : SunOS 5.8
I am trying to add a user ad3059 to the following groups,
A B C D ( four groups A,B,C,D)
When i use usermod command and add the user to the above groups,
and go to
> groups ad3059
other C D
It doesnt show A and B groups and shows it as other.Please advice on how... (13 Replies)