Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Users of own group shouldn't be able to delete
Top Forums UNIX for Dummies Questions & Answers Users of own group shouldn't be able to delete Post 302960582 by Don Cragun on Tuesday 17th of November 2015 06:26:04 AM
Old 11-17-2015
If a directory's file mode has the sticky bit set, the standards say:
Code:
If a directory is writable and the mode bit S_ISVTX is set on the directory, a process may remove
or rename files within that directory only if one or more of the following is true:
• The effective user ID of the process is the same as that of the owner ID of the file.
• The effective user ID of the process is the same as that of the owner ID of the directory.
• The process has appropriate privileges.
• Optionally, the file is writable by the process. Whether or not files that are writable by the
  process can be removed or renamed is implementation-defined.

To set the sticky bit on a directory, you want something like:
Code:
chmod 1775 directory_name...

the 1000 bit in that mode is the sticky bit. This chmod command must be run by the owner of the directory (or by a process with appropriate privileges [on many systems, this means running as root]).
These 2 Users Gave Thanks to Don Cragun For This Post:
jim mcnamara kraljic
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Adding users to /etc/group

I'm using SAM to add users on an HP and they're adding fine. But in /etc/group it only lists the group names. It's not adding the users in there. Is there a way to have them put in there without going into SAM and modifying the group and adding them? I guess what I want to happen is when I add... (1 Reply)
Discussion started by: golfhakker
1 Replies

2. 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+. (6 Replies)
Discussion started by: gillbates
6 Replies

3. AIX

Max users in a group ?

Hi All, Does anyone know if there is a maximum limit to the number of users that can be assigned to a group. I currently have on a production server 900+ users in 1 group. I know some of these users are no longer valid as we only have 500 employees and not all employees use this application. ... (4 Replies)
Discussion started by: anmiller
4 Replies

4. Shell Programming and Scripting

SSH for a group of users ?

Hi, Can any one tell me is it possible to setup private key public key pairing(SSH ) for a group of users , instead of setting it up for individual users ? Eg: Say i have 3 users A,B and C and i want the users to connect to SERVER1. instead of generating public private keys for each user , is... (3 Replies)
Discussion started by: deepusunil
3 Replies

5. Solaris

How can i allow only a group of users in NIS?

Hello experts. I am using Solaris10. How can i allow a group of users, remaining should be deny. Thanx in advance. (9 Replies)
Discussion started by: younus_syed
9 Replies

6. Shell Programming and Scripting

Diffferentiate group from users

Im trying to put all the groups in into a variable called $GROUP, however in /etc/group there are also lotsa users. And the GID of group can differ as it can be set, this there is no specific range, how can i put all the names of the groups into that variable? (3 Replies)
Discussion started by: dplate07
3 Replies

7. Shell Programming and Scripting

Change of group to different users

Need to change the chgrp for different uses d---rwx--t 3 root 764 4096 Mar 16 2007 algavi d---rwx--t 6 root 2857 4096 Jul 16 11:28 alharki d---rwx--t 5 root 2739 4096 Oct 14 2008 alpen d---rwx--t 5 root 546 4096 Mar 16 2007 alvarez d---rwx--t 3 root... (2 Replies)
Discussion started by: gsiva
2 Replies

8. Programming

to obtain users of each group in c

Hello They have ordered to me that makes several small utilities in C/C++ for the servants, among them a small program in C/C++ to generate a file HTML with the groups of that servant and in addition that is the corresponding users of that group. For example of a group: Group: Sys Members:... (2 Replies)
Discussion started by: cybermeis
2 Replies

9. Shell Programming and Scripting

users per group

hi guys I am trying to display a list of groups and the respective users: Group1 : user1 user2 user3 .... the closest thing I get is echo " "; echo "Group Users "; echo " "; cat /etc/group |grep | grep -v nfswhich I really don't since I want to remove the other stuff like x : and... (4 Replies)
Discussion started by: karlochacon
4 Replies

10. UNIX for Dummies Questions & Answers

create new group/delete existing group

Hi, please let me know the commands to create new group/delete existing group in unix and assigning users to newly created group. Thank you in advance. (2 Replies)
Discussion started by: kancherla.sree
2 Replies

LEARN ABOUT DEBIAN

luseradd

luseradd(8)						      System Manager's Manual						       luseradd(8)

NAME

       luseradd - Add an user

SYNOPSIS

       luseradd [OPTION]... user

DESCRIPTION

       Adds an user with name user.

OPTIONS

       -c, --gecos=gecos
	      Set the GECOS field to gecos.  The GECOS field is traditionally used to store user's real name and other information.

       -d, --directory=directory
	      Set user's home directory to directory.  If this option is not present, a default specified by libuser configuration is used.

       -g, --gid=group
	      Set  user's  primary group to group.  group can either be a group ID of an existing group, or a group name; if group is a group name
	      and the group does not exist, it is created.  If the --gid option is not specified, the default group name is user.

       -i, --interactive
	      Ask all questions when connecting to the user database, even if default answers are set up in libuser configuration.

       -k, --skeleton=directory
	      Populate the newly created user's home directory with a copy of directory.  If this option is not present, a default directory spec-
	      ified by libuser configuration, or /etc/skel if libuser configuration does not specify a default, is used.

       -M, --nocreatehome
	      Don't create a home directory and a mail spool for the newly created user.

       -n, --nocreategroup
	      If  a  group is not specified using -g, use group name "users" instead of user.  Note that despite the name of the option, the group
	      will still be created if it does not exist.

       -P, --plainpassword=password
	      Set user's password to password.	Note that the password can be viewed while running luseradd using tools such as ps(1).

       -p, --password=encrypted
	      Set user's password to the password represented by the hash encrypted.  Note that the hash can  be  viewed  while  running  luseradd
	      using tools such as ps(1).

       -r, --reserved
	      The  user  is  a system user.  Users that are not marked as system user usually have automatically selected user IDs above a certain
	      value (500 by default).  This information is also passed to the libuser backends.  This option implies the -M option.

       -s, --shell=shell
	      Set user's login shell to shell.	If this option is not present, a default specified by libuser configuration is used.

       -u, --uid=uid
	      Use user ID uid for the newly created user.  An user ID is selected automatically if this option is not present.

EXIT STATUS

       The exit status is 0 on success, nonzero on error.

libuser 							    Jan 12 2005 						       luseradd(8)
All times are GMT -4. The time now is 04:56 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy