The group tag has no wiki summary.
17
votes
3answers
14k views
Make all new files in a directory accessible to a group
Suppose I have two users A and B and a group G and a folder foo, both users are members of G (using linux and ext3).
If I save as user A a file under foo, the permissions are: -rw-r--r-- A A. ...
10
votes
2answers
3k views
How to apply changes of newly added user groups without needing to reboot?
Assume I'm logged in with user takpar:
takpar@skyspace:/$
As root, I've added takpar as a member of group webdev using:
# usermod -a -G webdev takpar
But it seems it has not been applied. because ...
4
votes
2answers
4k views
I added a user to a group, but group permissions on files still have no effect
I changed permissions of a file (chmod g+w testfile) and running ls -l testfile gives:
-rwxrwxr-x 1 user1 user1 0 2011-01-24 20:36 testfile
I then added a user to that group ("/etc/group" has ...
3
votes
3answers
877 views
What does it mean to be in group 0?
Several users in a system I inherited have their group set to 0 in /etc/passwd. What does that mean? Do they essentially get full root privileges?
The system is running CentOS 5, and the users ...
55
votes
5answers
13k views
Where did the “wheel” group get its name?
The wheel group on *nix computers typically refers to the group with some sort of root-like access. I've heard that on some *nixes it's the group of users with the right to run su, but on Linux that ...
9
votes
2answers
5k views
Why is Debian not creating the 'wheel' group by default?
It appears to be Unix tradition that a wheel group is created automatically, but Debian (and children, naturally) doesn't do so. Is there a rationale somewhere? Where else have you seen this tradition ...
1
vote
2answers
722 views
newgrp and groups assigned via pam_group.so
For convenience reasons I tend to assign special group memberships like floppy, audio, plugdev, video etc. via /etc/security/group.conf (pam_group.so) mechanism instead of adding all users to this ...
6
votes
2answers
4k views
GID, current, primary, supplementary, effective and real group IDs?
The following links discuss these concepts in different contexts. I have read their definitions, but I still can't tell how they are related, or if some of them are just the same.
Current group ID
...
7
votes
2answers
2k views
I can't delete a file that I have write permissions for as a group member
$ touch testfile
$ chmod g+w testfile
$ sudo adduser user2 user1
$ stat -c'%a %A' testfile
664 -rw-rw-r--
$ su user2
Password:
$ groups
user2 user1
$ rm testfile
rm: cannot remove `testfile': ...
5
votes
5answers
197 views
Changing Unix group for files
I have a file that a colleague and I are editing together, on a Unix system. We are using Unix group permissions to edit it. We have one Unix group that we are both members of. Whenever I save the ...
3
votes
3answers
2k views
Reset all groups to default
I recently set up some groups and users on my machine, and now I want to remove all those users and all those groups. Somewhat stupidly, I read on an Ubuntu forum or something like that that it was ...
2
votes
1answer
5k views
Changing user and group ID system wide (including file system attributes)?
(this question possibly related to Linux: simulating/masking user ownership upon mount of 'external' partitions? - Stack Overflow)
I typically use Ubuntu (currently 11.04) as my desktop OS; let's say ...
1
vote
1answer
679 views
Accessing another user's files
I have a file "abc" with permissions 440 .The owner of this file is "root" and the group of this file is "groupabc" . I have a user "user1" .Is their anyway I can see the contents of files "abc" using ...
0
votes
1answer
38 views
Added user supplementary group, but 'groups(1)' not showing change [duplicate]
I'm trying to add myself to the fuse user group but it doesn't look like the change is taking effect even though /etc/group looks correct after invoking addgroup or usermod.
I've tried both ...
sudo ...
